diff --git a/build.gradle b/build.gradle
index 5c636f85..8cbcff2b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -27,12 +27,14 @@ repositories {
 
 ext {
     set('snippetsDir', file("build/generated-snippets"))
+    set('springCloudVersion', "2022.0.3")
 }
 
 dependencies {
     implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
     implementation 'org.springframework.boot:spring-boot-starter-web'
     implementation 'org.springframework.boot:spring-boot-starter-validation'
+    implementation 'org.springframework.cloud:spring-cloud-starter-openfeign:4.0.3'
 
     compileOnly 'org.projectlombok:lombok'
     runtimeOnly 'com.h2database:h2'
diff --git a/src/main/java/com/sopterm/makeawish/config/FeignConfig.java b/src/main/java/com/sopterm/makeawish/config/FeignConfig.java
new file mode 100644
index 00000000..50ee0e17
--- /dev/null
+++ b/src/main/java/com/sopterm/makeawish/config/FeignConfig.java
@@ -0,0 +1,9 @@
+package com.sopterm.makeawish.config;
+
+import org.springframework.cloud.openfeign.EnableFeignClients;
+import org.springframework.context.annotation.Configuration;
+
+@EnableFeignClients(basePackages = "com.sopterm.makeawish.external")
+@Configuration
+public class FeignConfig {
+}
diff --git a/src/main/java/com/sopterm/makeawish/external/SlackClient.java b/src/main/java/com/sopterm/makeawish/external/SlackClient.java
new file mode 100644
index 00000000..b67d27bd
--- /dev/null
+++ b/src/main/java/com/sopterm/makeawish/external/SlackClient.java
@@ -0,0 +1,12 @@
+package com.sopterm.makeawish.external;
+
+import org.springframework.cloud.openfeign.FeignClient;
+import org.springframework.http.MediaType;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+
+@FeignClient(value = "slackClient", url = "${slack.url}")
+public interface SlackClient {
+    @PostMapping(value = "", consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE)
+    void postMessage(@RequestBody String request);
+}
diff --git a/src/main/java/com/sopterm/makeawish/service/social/KakaoLoginService.java b/src/main/java/com/sopterm/makeawish/service/social/KakaoLoginService.java
index b209372e..5c6e9586 100644
--- a/src/main/java/com/sopterm/makeawish/service/social/KakaoLoginService.java
+++ b/src/main/java/com/sopterm/makeawish/service/social/KakaoLoginService.java
@@ -1,27 +1,39 @@
 package com.sopterm.makeawish.service.social;
 
 import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
 import com.google.gson.JsonParser;
 import com.sopterm.makeawish.domain.user.InternalTokenManager;
 import com.sopterm.makeawish.domain.user.KakaoTokenManager;
 import com.sopterm.makeawish.domain.user.User;
 import com.sopterm.makeawish.dto.auth.AuthSignInRequestDTO;
 import com.sopterm.makeawish.dto.auth.AuthSignInResponseDTO;
+import com.sopterm.makeawish.external.SlackClient;
 import com.sopterm.makeawish.repository.UserRepository;
 import com.sopterm.makeawish.service.SocialLoginService;
 import lombok.*;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Service;
 
+import java.time.LocalDateTime;
+import java.util.Objects;
+
 import static com.sopterm.makeawish.common.message.ErrorMessage.*;
 
+@Slf4j
 @Service
 @RequiredArgsConstructor
 public class KakaoLoginService implements SocialLoginService {
 
+    @Value("${spring.profiles.active}")
+    private String activeProfile;
     private final UserRepository userRepository;
     private final InternalTokenManager tokenManager;
     private final KakaoTokenManager kakaoTokenManager;
-
+    private final SlackClient slackClient;
+    private final ObjectMapper jsonMapper = new ObjectMapper();
     @Override
     public AuthSignInResponseDTO socialLogin(String code, String redirectUri) {
         String kakaoAccessToken = null;
@@ -44,6 +56,47 @@ private User issueAccessToken(AuthSignInRequestDTO request) {
                 .orElseGet(() -> signup(request));
     }
     private User signup(AuthSignInRequestDTO request) {
+
+        try {
+            if (Objects.equals(activeProfile, "dev")) {
+                val slackRequest = createSlackRequest(request.nickname(), request.email(), request.createdAt(), String.valueOf(request.socialType()));
+                slackClient.postMessage(slackRequest.toString());
+            }
+        } catch (RuntimeException ex) {
+            log.error("슬랙 요청이 실패했습니다 : " + ex.getMessage());
+        }
         return userRepository.save(new User(request));
     }
+
+    private JsonNode createSlackRequest(String nickname, String email, LocalDateTime createdAt, String socialType) {
+        val rootNode = jsonMapper.createObjectNode();
+        rootNode.put("text", "새로운 유저가 가입했어요!");
+        val blocks = jsonMapper.createArrayNode();
+
+        val textField = jsonMapper.createObjectNode();
+        textField.put("type", "section");
+        textField.set("text", createTextFieldNode("새로운 유저가 가입했어요!"));
+
+        val contentNode = jsonMapper.createObjectNode();
+        contentNode.put("type", "section");
+        val fields = jsonMapper.createArrayNode();
+        fields.add(createTextFieldNode("*이름:*\n" + nickname));
+        fields.add(createTextFieldNode("*이메알:*\n"+ email));
+        fields.add(createTextFieldNode("*가입 시간:*\n" + createdAt));
+        fields.add(createTextFieldNode("*소셜:*\n" + socialType));
+        contentNode.set("fields", fields);
+
+        blocks.add(textField);
+        blocks.add(contentNode);
+        rootNode.set("blocks", blocks);
+        return rootNode;
+    }
+
+    private JsonNode createTextFieldNode (String text) {
+        val textField = jsonMapper.createObjectNode();
+        textField.put("type", "mrkdwn");
+        textField.put("text", text);
+        return textField;
+    }
+
 }