diff --git a/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/domain/challengegroup/userchallenge/AddExpToChallengeGroupEvent.java b/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/domain/challengegroup/userchallenge/AddUserExpByVerificationEvent.java
similarity index 85%
rename from zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/domain/challengegroup/userchallenge/AddExpToChallengeGroupEvent.java
rename to zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/domain/challengegroup/userchallenge/AddUserExpByVerificationEvent.java
index ea486c6..28d92a5 100644
--- a/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/domain/challengegroup/userchallenge/AddExpToChallengeGroupEvent.java
+++ b/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/domain/challengegroup/userchallenge/AddUserExpByVerificationEvent.java
@@ -5,7 +5,7 @@
 
 @Getter
 @AllArgsConstructor(staticName = "of")
-public class AddExpToChallengeGroupEvent {
+public class AddUserExpByVerificationEvent {
     private Long userId;
     private Integer acquiredExp;
     private Long challengeGroupId;
diff --git a/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/domain/challengegroup/userchallenge/AddUserExpByVerificationUseCase.java b/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/domain/challengegroup/userchallenge/AddUserExpByVerificationUseCase.java
new file mode 100644
index 0000000..24e39f0
--- /dev/null
+++ b/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/domain/challengegroup/userchallenge/AddUserExpByVerificationUseCase.java
@@ -0,0 +1,23 @@
+package org.haedal.zzansuni.domain.challengegroup.userchallenge;
+
+import lombok.RequiredArgsConstructor;
+import org.haedal.zzansuni.domain.challengegroup.ChallengeGroupReader;
+import org.haedal.zzansuni.domain.challengegroup.userexp.ChallengeGroupUserExp;
+import org.springframework.stereotype.Component;
+import org.springframework.transaction.annotation.Transactional;
+
+@Component
+@RequiredArgsConstructor
+public class AddUserExpByVerificationUseCase {
+    private final ChallengeGroupReader challengeGroupReader;
+
+    @Transactional
+    public void invoke(AddUserExpByVerificationEvent event) {
+        Long challengeGroupId = event.getChallengeGroupId();
+        Long userId = event.getUserId();
+
+        ChallengeGroupUserExp challengeGroupUserExp = challengeGroupReader
+                .findByChallengeGroupIdAndUserId(challengeGroupId, userId).orElseThrow();
+        challengeGroupUserExp.addExp(event.getAcquiredExp());
+    }
+}
diff --git a/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/domain/challengegroup/userchallenge/UserChallenge.java b/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/domain/challengegroup/userchallenge/UserChallenge.java
index a777b2a..09991ea 100644
--- a/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/domain/challengegroup/userchallenge/UserChallenge.java
+++ b/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/domain/challengegroup/userchallenge/UserChallenge.java
@@ -68,7 +68,7 @@ public static UserChallenge create(Challenge challenge, User user) {
      * 3. 챌린지를 완료한 경우 챌린지 완료로 변경, 경험치 추가
      * 4. 챌린지그룹-경험치 추가 이벤트를 반환
      */
-    public AddExpToChallengeGroupEvent addChallengeVerification(ChallengeCommand.VerificationCreate command) {
+    public AddUserExpByVerificationEvent addChallengeVerification(ChallengeCommand.VerificationCreate command) {
         ChallengeVerification challengeVerification = ChallengeVerification.create(command, this);
         this.challengeVerifications.add(challengeVerification);
 
@@ -81,7 +81,7 @@ public AddExpToChallengeGroupEvent addChallengeVerification(ChallengeCommand.Ver
             acquiredExp += challenge.getSuccessExp();
             this.completeChallengeStatus();
         }
-        return AddExpToChallengeGroupEvent
+        return AddUserExpByVerificationEvent
                 .of(user.getId(), acquiredExp, challenge.getChallengeGroupId());
     }
 
diff --git a/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/domain/challengegroup/userchallenge/UserChallengeService.java b/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/domain/challengegroup/userchallenge/UserChallengeService.java
index 594808b..7636a0f 100644
--- a/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/domain/challengegroup/userchallenge/UserChallengeService.java
+++ b/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/domain/challengegroup/userchallenge/UserChallengeService.java
@@ -4,7 +4,6 @@
 import java.util.Map;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import org.haedal.zzansuni.domain.challengegroup.ChallengeGroupReader;
 import org.haedal.zzansuni.domain.challengegroup.userexp.ChallengeGroupUserExp;
 import org.haedal.zzansuni.domain.challengegroup.userexp.ChallengeGroupUserExpStore;
 import org.haedal.zzansuni.domain.challengegroup.challenge.Challenge;
@@ -29,8 +28,8 @@ public class UserChallengeService {
     private final ChallengeReviewReader challengeReviewReader;
     private final UserReader userReader;
     private final ChallengeReader challengeReader;
-    private final ChallengeGroupReader challengeGroupReader;
     private final ChallengeGroupUserExpStore challengeGroupUserExpStore;
+    private final AddUserExpByVerificationUseCase addUserExpByVerificationUseCase;
     /**
      * 챌린지 참여하기 <br>
      * 1. 유저와 챌린지 정보를 받아서 UserChallenge 테이블에 데이터 추가
@@ -77,14 +76,10 @@ public ChallengeModel.ChallengeVerificationResult verification(
             throw new IllegalArgumentException("해당 챌린지에 참여한 유저가 아닙니다.");
         }
 
-
-        AddExpToChallengeGroupEvent addExpToChallengeGroupEvent = userChallenge.addChallengeVerification(command);
+        AddUserExpByVerificationEvent event = userChallenge.addChallengeVerification(command);
 
         // 챌린지 경험치 획득 로직
-        Long challengeGroupId = userChallenge.getChallenge().getChallengeGroupId();
-        ChallengeGroupUserExp challengeGroupUserExp = challengeGroupReader
-            .findByChallengeGroupIdAndUserId(challengeGroupId, userId).orElseThrow();
-        challengeGroupUserExp.addExp(addExpToChallengeGroupEvent.getAcquiredExp());
+        addUserExpByVerificationUseCase.invoke(event);
 
         // 챌린지 RequiredCount 가져오기 위해 챌린지 정보 가져온다
         Challenge challenge = userChallenge.getChallenge();