diff --git a/package-lock.json b/package-lock.json
index 5b7e569..c039217 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -15,6 +15,9 @@
         "@sentry/node": "^7.73.0",
         "@sentry/profiling-node": "^1.2.1",
         "@types/jsonwebtoken": "^9.0.2",
+        "axios": "^1.6.0",
+        "crypto": "^1.0.1",
+        "crypto-js": "^4.2.0",
         "dotenv": "^16.3.1",
         "fastify": "^4.19.1",
         "fastify-plugin": "^4.5.0",
@@ -23,6 +26,7 @@
       },
       "devDependencies": {
         "@jest/globals": "^29.6.0",
+        "@types/crypto-js": "^4.1.3",
         "@types/node": "^20.3.3",
         "jest": "^29.6.0",
         "nodemon": "^2.0.22",
@@ -1861,6 +1865,12 @@
         "@babel/types": "^7.20.7"
       }
     },
+    "node_modules/@types/crypto-js": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/@types/crypto-js/-/crypto-js-4.1.3.tgz",
+      "integrity": "sha512-YP1sYYayLe7Eg5oXyLLvOLfxBfZ5Fgpz6sVWkpB18wDMywCLPWmqzRz+9gyuOoLF0fzDTTFwlyNbx7koONUwqA==",
+      "dev": true
+    },
     "node_modules/@types/graceful-fs": {
       "version": "4.1.6",
       "resolved": "https://registry.npmjs.org/@types/graceful-fs/-/graceful-fs-4.1.6.tgz",
@@ -2152,6 +2162,11 @@
         "sprintf-js": "~1.0.2"
       }
     },
+    "node_modules/asynckit": {
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
+      "integrity": "sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q=="
+    },
     "node_modules/atomic-sleep": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/atomic-sleep/-/atomic-sleep-1.0.0.tgz",
@@ -2170,6 +2185,16 @@
         "fastq": "^1.6.1"
       }
     },
+    "node_modules/axios": {
+      "version": "1.6.0",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-1.6.0.tgz",
+      "integrity": "sha512-EZ1DYihju9pwVB+jg67ogm+Tmqc6JmhamRN6I4Zt8DfZu5lbcQGw3ozH9lFejSJgs/ibaef3A9PMXPLeefFGJg==",
+      "dependencies": {
+        "follow-redirects": "^1.15.0",
+        "form-data": "^4.0.0",
+        "proxy-from-env": "^1.1.0"
+      }
+    },
     "node_modules/babel-jest": {
       "version": "29.6.0",
       "resolved": "https://registry.npmjs.org/babel-jest/-/babel-jest-29.6.0.tgz",
@@ -2685,6 +2710,17 @@
         "color-support": "bin.js"
       }
     },
+    "node_modules/combined-stream": {
+      "version": "1.0.8",
+      "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.8.tgz",
+      "integrity": "sha512-FQN4MRfuJeHf7cBbBMJFXhKSDq+2kAArBlmRBvcvFE5BB1HZKXtSFASDhdlz9zOYwxh8lDdnvmMOe/+5cdoEdg==",
+      "dependencies": {
+        "delayed-stream": "~1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
     "node_modules/concat-map": {
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
@@ -2741,6 +2777,17 @@
         "node": ">= 8"
       }
     },
+    "node_modules/crypto": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/crypto/-/crypto-1.0.1.tgz",
+      "integrity": "sha512-VxBKmeNcqQdiUQUW2Tzq0t377b54N2bMtXO/qiLa+6eRRmmC4qT3D4OnTGoT/U6O9aklQ/jTwbOtRMTTY8G0Ig==",
+      "deprecated": "This package is no longer supported. It's now a built-in Node module. If you've depended on crypto, you should switch to the one that's built-in."
+    },
+    "node_modules/crypto-js": {
+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/crypto-js/-/crypto-js-4.2.0.tgz",
+      "integrity": "sha512-KALDyEYgpY+Rlob/iriUtjV6d5Eq+Y191A5g4UqLAi8CyGP9N1+FdVbkc1SxKc2r4YAYqG8JzO2KGL+AizD70Q=="
+    },
     "node_modules/debug": {
       "version": "4.3.4",
       "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.4.tgz",
@@ -2772,6 +2819,14 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/delayed-stream": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
+      "integrity": "sha512-ZySD7Nf91aLB0RxL4KGrKHBXl7Eds1DAmEdcoVawXnLD7SDhpNgtuII2aAkg7a7QS41jxPSZ17p4VdGnMHk3MQ==",
+      "engines": {
+        "node": ">=0.4.0"
+      }
+    },
     "node_modules/delegates": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/delegates/-/delegates-1.0.0.tgz",
@@ -3181,6 +3236,25 @@
         "node": ">=8"
       }
     },
+    "node_modules/follow-redirects": {
+      "version": "1.15.3",
+      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.15.3.tgz",
+      "integrity": "sha512-1VzOtuEM8pC9SFU1E+8KfTjZyMztRsgEfwQl44z8A25uy13jSzTj6dyK2Df52iV0vgHCfBwLhDWevLn95w5v6Q==",
+      "funding": [
+        {
+          "type": "individual",
+          "url": "https://github.com/sponsors/RubenVerborgh"
+        }
+      ],
+      "engines": {
+        "node": ">=4.0"
+      },
+      "peerDependenciesMeta": {
+        "debug": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/foreground-child": {
       "version": "3.1.1",
       "resolved": "https://registry.npmjs.org/foreground-child/-/foreground-child-3.1.1.tgz",
@@ -3207,6 +3281,19 @@
         "url": "https://github.com/sponsors/isaacs"
       }
     },
+    "node_modules/form-data": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/form-data/-/form-data-4.0.0.tgz",
+      "integrity": "sha512-ETEklSGi5t0QMZuiXoA/Q6vcnxcLQP5vdugSpuAyi6SVGi2clPPp+xgEhuMaHC+zGgn31Kd235W35f7Hykkaww==",
+      "dependencies": {
+        "asynckit": "^0.4.0",
+        "combined-stream": "^1.0.8",
+        "mime-types": "^2.1.12"
+      },
+      "engines": {
+        "node": ">= 6"
+      }
+    },
     "node_modules/forwarded": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/forwarded/-/forwarded-0.2.0.tgz",
@@ -4645,6 +4732,25 @@
         "node": ">=10.0.0"
       }
     },
+    "node_modules/mime-db": {
+      "version": "1.52.0",
+      "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.52.0.tgz",
+      "integrity": "sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg==",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/mime-types": {
+      "version": "2.1.35",
+      "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.35.tgz",
+      "integrity": "sha512-ZDY+bPm5zTTF+YpCrAU9nK0UgICYPT0QtT1NZWFv4s++TNkcgVaT0g6+4R2uI4MjQjzysHB1zxuWL50hzaeXiw==",
+      "dependencies": {
+        "mime-db": "1.52.0"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
     "node_modules/mimic-fn": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/mimic-fn/-/mimic-fn-2.1.0.tgz",
@@ -5330,6 +5436,11 @@
         "node": ">= 0.10"
       }
     },
+    "node_modules/proxy-from-env": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/proxy-from-env/-/proxy-from-env-1.1.0.tgz",
+      "integrity": "sha512-D+zkORCbA9f1tdWRK0RaCR3GPv50cMxcrz4X8k5LTSUD1Dkw47mKJEZQNunItRTkWwgtaUSo1RVFRIG9ZXiFYg=="
+    },
     "node_modules/pstree.remy": {
       "version": "1.1.8",
       "resolved": "https://registry.npmjs.org/pstree.remy/-/pstree.remy-1.1.8.tgz",
@@ -7750,6 +7861,12 @@
         "@babel/types": "^7.20.7"
       }
     },
+    "@types/crypto-js": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/@types/crypto-js/-/crypto-js-4.1.3.tgz",
+      "integrity": "sha512-YP1sYYayLe7Eg5oXyLLvOLfxBfZ5Fgpz6sVWkpB18wDMywCLPWmqzRz+9gyuOoLF0fzDTTFwlyNbx7koONUwqA==",
+      "dev": true
+    },
     "@types/graceful-fs": {
       "version": "4.1.6",
       "resolved": "https://registry.npmjs.org/@types/graceful-fs/-/graceful-fs-4.1.6.tgz",
@@ -7986,6 +8103,11 @@
         "sprintf-js": "~1.0.2"
       }
     },
+    "asynckit": {
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
+      "integrity": "sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q=="
+    },
     "atomic-sleep": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/atomic-sleep/-/atomic-sleep-1.0.0.tgz",
@@ -8001,6 +8123,16 @@
         "fastq": "^1.6.1"
       }
     },
+    "axios": {
+      "version": "1.6.0",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-1.6.0.tgz",
+      "integrity": "sha512-EZ1DYihju9pwVB+jg67ogm+Tmqc6JmhamRN6I4Zt8DfZu5lbcQGw3ozH9lFejSJgs/ibaef3A9PMXPLeefFGJg==",
+      "requires": {
+        "follow-redirects": "^1.15.0",
+        "form-data": "^4.0.0",
+        "proxy-from-env": "^1.1.0"
+      }
+    },
     "babel-jest": {
       "version": "29.6.0",
       "resolved": "https://registry.npmjs.org/babel-jest/-/babel-jest-29.6.0.tgz",
@@ -8344,6 +8476,14 @@
       "resolved": "https://registry.npmjs.org/color-support/-/color-support-1.1.3.tgz",
       "integrity": "sha512-qiBjkpbMLO/HL68y+lh4q0/O1MZFj2RX6X/KmMa3+gJD3z+WwI1ZzDHysvqHGS3mP6mznPckpXmw1nI9cJjyRg=="
     },
+    "combined-stream": {
+      "version": "1.0.8",
+      "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.8.tgz",
+      "integrity": "sha512-FQN4MRfuJeHf7cBbBMJFXhKSDq+2kAArBlmRBvcvFE5BB1HZKXtSFASDhdlz9zOYwxh8lDdnvmMOe/+5cdoEdg==",
+      "requires": {
+        "delayed-stream": "~1.0.0"
+      }
+    },
     "concat-map": {
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
@@ -8391,6 +8531,16 @@
         "which": "^2.0.1"
       }
     },
+    "crypto": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/crypto/-/crypto-1.0.1.tgz",
+      "integrity": "sha512-VxBKmeNcqQdiUQUW2Tzq0t377b54N2bMtXO/qiLa+6eRRmmC4qT3D4OnTGoT/U6O9aklQ/jTwbOtRMTTY8G0Ig=="
+    },
+    "crypto-js": {
+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/crypto-js/-/crypto-js-4.2.0.tgz",
+      "integrity": "sha512-KALDyEYgpY+Rlob/iriUtjV6d5Eq+Y191A5g4UqLAi8CyGP9N1+FdVbkc1SxKc2r4YAYqG8JzO2KGL+AizD70Q=="
+    },
     "debug": {
       "version": "4.3.4",
       "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.4.tgz",
@@ -8411,6 +8561,11 @@
       "integrity": "sha512-3sUqbMEc77XqpdNO7FRyRog+eW3ph+GYCbj+rK+uYyRMuwsVy0rMiVtPn+QJlKFvWP/1PYpapqYn0Me2knFn+A==",
       "dev": true
     },
+    "delayed-stream": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
+      "integrity": "sha512-ZySD7Nf91aLB0RxL4KGrKHBXl7Eds1DAmEdcoVawXnLD7SDhpNgtuII2aAkg7a7QS41jxPSZ17p4VdGnMHk3MQ=="
+    },
     "delegates": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/delegates/-/delegates-1.0.0.tgz",
@@ -8740,6 +8895,11 @@
         "path-exists": "^4.0.0"
       }
     },
+    "follow-redirects": {
+      "version": "1.15.3",
+      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.15.3.tgz",
+      "integrity": "sha512-1VzOtuEM8pC9SFU1E+8KfTjZyMztRsgEfwQl44z8A25uy13jSzTj6dyK2Df52iV0vgHCfBwLhDWevLn95w5v6Q=="
+    },
     "foreground-child": {
       "version": "3.1.1",
       "resolved": "https://registry.npmjs.org/foreground-child/-/foreground-child-3.1.1.tgz",
@@ -8756,6 +8916,16 @@
         }
       }
     },
+    "form-data": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/form-data/-/form-data-4.0.0.tgz",
+      "integrity": "sha512-ETEklSGi5t0QMZuiXoA/Q6vcnxcLQP5vdugSpuAyi6SVGi2clPPp+xgEhuMaHC+zGgn31Kd235W35f7Hykkaww==",
+      "requires": {
+        "asynckit": "^0.4.0",
+        "combined-stream": "^1.0.8",
+        "mime-types": "^2.1.12"
+      }
+    },
     "forwarded": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/forwarded/-/forwarded-0.2.0.tgz",
@@ -9849,6 +10019,19 @@
       "resolved": "https://registry.npmjs.org/mime/-/mime-3.0.0.tgz",
       "integrity": "sha512-jSCU7/VB1loIWBZe14aEYHU/+1UMEHoaO7qxCOVJOw9GgH72VAWppxNcjU+x9a2k3GSIBXNKxXQFqRvvZ7vr3A=="
     },
+    "mime-db": {
+      "version": "1.52.0",
+      "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.52.0.tgz",
+      "integrity": "sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg=="
+    },
+    "mime-types": {
+      "version": "2.1.35",
+      "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.35.tgz",
+      "integrity": "sha512-ZDY+bPm5zTTF+YpCrAU9nK0UgICYPT0QtT1NZWFv4s++TNkcgVaT0g6+4R2uI4MjQjzysHB1zxuWL50hzaeXiw==",
+      "requires": {
+        "mime-db": "1.52.0"
+      }
+    },
     "mimic-fn": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/mimic-fn/-/mimic-fn-2.1.0.tgz",
@@ -10360,6 +10543,11 @@
         "ipaddr.js": "1.9.1"
       }
     },
+    "proxy-from-env": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/proxy-from-env/-/proxy-from-env-1.1.0.tgz",
+      "integrity": "sha512-D+zkORCbA9f1tdWRK0RaCR3GPv50cMxcrz4X8k5LTSUD1Dkw47mKJEZQNunItRTkWwgtaUSo1RVFRIG9ZXiFYg=="
+    },
     "pstree.remy": {
       "version": "1.1.8",
       "resolved": "https://registry.npmjs.org/pstree.remy/-/pstree.remy-1.1.8.tgz",
diff --git a/package.json b/package.json
index 1b341a9..1655d20 100644
--- a/package.json
+++ b/package.json
@@ -25,6 +25,9 @@
     "@sentry/node": "^7.73.0",
     "@sentry/profiling-node": "^1.2.1",
     "@types/jsonwebtoken": "^9.0.2",
+    "axios": "^1.6.0",
+    "crypto": "^1.0.1",
+    "crypto-js": "^4.2.0",
     "dotenv": "^16.3.1",
     "fastify": "^4.19.1",
     "fastify-plugin": "^4.5.0",
@@ -33,6 +36,7 @@
   },
   "devDependencies": {
     "@jest/globals": "^29.6.0",
+    "@types/crypto-js": "^4.1.3",
     "@types/node": "^20.3.3",
     "jest": "^29.6.0",
     "nodemon": "^2.0.22",
diff --git a/src/config/index.ts b/src/config/index.ts
index b3f445e..5f9539b 100644
--- a/src/config/index.ts
+++ b/src/config/index.ts
@@ -6,8 +6,8 @@ class Config{
 
     static of(): Config {
         if (!Config.instance) {
-            process.env.NODE_ENV = process.env.NODE_ENV || 'development';
             config();
+            process.env.NODE_ENV = process.env.NODE_ENV || 'development';
             Config.instance = new Config();
         }
         return Config.instance;
@@ -20,6 +20,10 @@ class Config{
             salt: process.env.SALT || 'salt',
             sentryDSN: process.env.SENTRY_DSN || '',
             nodeEnv: process.env.NODE_ENV,
+            NCP_SENS_SECRET: process.env.NCP_SENS_SECRET || '',
+            NCP_SENS_ACCESS: process.env.NCP_SENS_ACCESS || '',
+            NCP_SENS_MY_NUMBER: process.env.NCP_SENS_MY_NUMBER || '',
+            NCP_SENS_ID: process.env.NCP_SENS_ID || '',
         } as const;
     }
 
diff --git a/src/services/userService.ts b/src/services/userService.ts
index dc20a35..6003e3f 100644
--- a/src/services/userService.ts
+++ b/src/services/userService.ts
@@ -1,6 +1,8 @@
 import { PrismaClient } from '@prisma/client';
 import * as User from '@DTO/user.dto';
-import * as Store from '@DTO/store.dto';
+import sendSMS from '@utils/sendSMS';
+import checkPhoneNumber from '@utils/checkPhoneNumber';
+import * as crypto from 'crypto';
 import {
   TokenForCertificatePhone,
   CertificatedPhoneToken,
@@ -16,8 +18,14 @@ export default {
   }: User.phoneInterface['Body']): Promise<
     User.phoneInterface['Reply']['200']
   > {
-    //TODO: 인증번호 생성
-    const certificationCode = '123456';
+    if (!checkPhoneNumber(phone)) {
+      throw new E.UserAuthorizationError('휴대폰 번호가 유효하지 않습니다.');
+    }
+    let certificationCode = '123456';
+    if(process.env.NODE_ENV === 'production'){
+      certificationCode = crypto.randomInt(100000, 999999).toString();
+      sendSMS(phone, 'SMS', `[카페포스] 인증번호는 ${certificationCode}입니다.`);
+    }
     const token = new TokenForCertificatePhone(phone, certificationCode).sign();
     return { tokenForCertificatePhone: token };
   },
diff --git a/src/utils/sendSMS.ts b/src/utils/sendSMS.ts
new file mode 100644
index 0000000..ac67c28
--- /dev/null
+++ b/src/utils/sendSMS.ts
@@ -0,0 +1,47 @@
+import CryptoJS from "crypto-js";
+import axios from "axios";
+import config from "@config";
+
+export default async (phoneNumber: string, type: string, message: string) => {
+  const date = Date.now().toString();
+
+  const uri = config.NCP_SENS_ID;
+  const secretKey = config.NCP_SENS_SECRET;
+  const accessKey = config.NCP_SENS_ACCESS;
+  const my_number = config.NCP_SENS_MY_NUMBER;
+  const method = 'POST';
+  const space = " ";
+  const newLine = "\n";
+  const url = `https://sens.apigw.ntruss.com/sms/v2/services/${uri}/messages`;
+  const url2 = `/sms/v2/services/${uri}/messages`;
+
+  const hmac = CryptoJS.algo.HMAC.create(CryptoJS.algo.SHA256, secretKey);
+  hmac.update(method);
+  hmac.update(space);
+  hmac.update(url2);
+  hmac.update(newLine);
+  hmac.update(date);
+  hmac.update(newLine);
+  hmac.update(accessKey);
+  const hash = hmac.finalize();
+  const signature = hash.toString(CryptoJS.enc.Base64);
+
+  const smsRes = await axios({
+    method: method,
+    url: url,
+    headers: {
+      "Contenc-type": "application/json; charset=utf-8",
+      "x-ncp-iam-access-key": accessKey,
+      "x-ncp-apigw-timestamp": date,
+      "x-ncp-apigw-signature-v2": signature,
+    },
+    data: {
+      type: type,
+      countryCode: "82",
+      from: my_number,
+      content: message,
+      messages: [{ to: `${phoneNumber}` }],
+    },
+  });
+  return smsRes.data;
+}