diff --git a/src/main/java/com/postgraduate/domain/senior/application/usecase/SeniorManageUseCase.java b/src/main/java/com/postgraduate/domain/senior/application/usecase/SeniorManageUseCase.java
index 10fbb2c5..09dffa69 100644
--- a/src/main/java/com/postgraduate/domain/senior/application/usecase/SeniorManageUseCase.java
+++ b/src/main/java/com/postgraduate/domain/senior/application/usecase/SeniorManageUseCase.java
@@ -25,6 +25,7 @@
 import com.postgraduate.domain.user.domain.entity.User;
 import com.postgraduate.domain.user.domain.service.UserUpdateService;
 import com.postgraduate.global.config.security.util.EncryptorUtils;
+import com.postgraduate.global.slack.SlackCertificationMessage;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
@@ -55,10 +56,12 @@ public class SeniorManageUseCase {
     private final EncryptorUtils encryptorUtils;
     private final UserUtils userUtils;
     private final SeniorUtils seniorUtils;
+    private final SlackCertificationMessage slackCertificationMessage;
 
     public void updateCertification(User user, SeniorCertificationRequest certificationRequest) {
         Senior senior = seniorGetService.byUser(user);
         seniorUpdateService.updateCertification(senior, certificationRequest.certification());
+        slackCertificationMessage.sendCertification(senior);
     }
 
     public SeniorProfileUpdateResponse signUpProfile(User user, SeniorProfileRequest profileRequest) {
diff --git a/src/main/java/com/postgraduate/global/slack/SlackCertificationMessage.java b/src/main/java/com/postgraduate/global/slack/SlackCertificationMessage.java
new file mode 100644
index 00000000..0438c243
--- /dev/null
+++ b/src/main/java/com/postgraduate/global/slack/SlackCertificationMessage.java
@@ -0,0 +1,53 @@
+package com.postgraduate.global.slack;
+
+import com.postgraduate.domain.senior.domain.entity.Senior;
+import com.postgraduate.domain.user.domain.entity.User;
+import com.slack.api.Slack;
+import com.slack.api.model.Attachment;
+import com.slack.api.webhook.Payload;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Component;
+
+import java.io.IOException;
+import java.util.List;
+
+import static com.postgraduate.global.slack.SlackUtils.generateSlackField;
+
+@Slf4j
+@RequiredArgsConstructor
+@Component
+public class SlackCertificationMessage {
+    private final Slack slackClient = Slack.getInstance();
+
+    @Value("${slack.certification_url}")
+    private String certificationUrl;
+
+    public void sendCertification(Senior senior) {
+        try {
+            slackClient.send(certificationUrl, Payload.builder()
+                    .text("선배 인증 요청이 들어왔습니다!")
+                    .attachments(
+                            List.of(generateCertificationAttachment(senior))
+                    )
+                    .build());
+        } catch (IOException e) {
+            log.error("slack 전송 오류");
+        }
+    }
+
+    private Attachment generateCertificationAttachment(Senior senior) {
+        User user = senior.getUser();
+        return Attachment.builder()
+                .color("2FC4B2")
+                .title("선배 인증 요청")
+                .fields(List.of(
+                        generateSlackField("선배 닉네임 : ", user.getNickName()),
+                        generateSlackField("선배 대학원 : ", senior.getInfo().getPostgradu()),
+                        generateSlackField("선배 연구실 : ", senior.getInfo().getLab()),
+                        generateSlackField("선배 교수 : " , senior.getInfo().getProfessor())
+                ))
+                .build();
+    }
+}
diff --git a/src/test/java/com/postgraduate/domain/senior/application/usecase/SeniorManageUseTypeTest.java b/src/test/java/com/postgraduate/domain/senior/application/usecase/SeniorManageUseTypeTest.java
index d6ea86c1..8eb12465 100644
--- a/src/test/java/com/postgraduate/domain/senior/application/usecase/SeniorManageUseTypeTest.java
+++ b/src/test/java/com/postgraduate/domain/senior/application/usecase/SeniorManageUseTypeTest.java
@@ -25,6 +25,7 @@
 import com.postgraduate.domain.user.domain.service.UserUpdateService;
 import com.postgraduate.domain.user.exception.PhoneNumberException;
 import com.postgraduate.global.config.security.util.EncryptorUtils;
+import com.postgraduate.global.slack.SlackCertificationMessage;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
@@ -72,6 +73,8 @@ class SeniorManageUseTypeTest {
     private UserUtils userUtils;
     @Mock
     private SeniorUtils seniorUtils;
+    @Mock
+    private SlackCertificationMessage slackCertificationMessage;
     @InjectMocks
     private SeniorManageUseCase seniorManageUseCase;