diff --git a/src/main/java/com/dnd/snappy/domain/mission/repository/MissionRepository.java b/src/main/java/com/dnd/snappy/domain/mission/repository/MissionRepository.java
index a877dee..5a5bc0c 100644
--- a/src/main/java/com/dnd/snappy/domain/mission/repository/MissionRepository.java
+++ b/src/main/java/com/dnd/snappy/domain/mission/repository/MissionRepository.java
@@ -20,10 +20,9 @@ public interface MissionRepository extends JpaRepository<Mission, Long> {
     SELECT new com.dnd.snappy.domain.mission.dto.response.LeaderMeetingMissionDetailResponseDto(m.id, m.content, 
         CASE WHEN mp.id IS NOT NULL THEN TRUE ELSE FALSE END) 
     FROM Mission m 
-    LEFT JOIN MissionParticipant mp ON mp.mission.id = m.id 
-    JOIN Participant p ON p.meeting.id = m.meeting.id 
-    WHERE p.id = :participantId AND p.role = 'LEADER' AND m.meeting.id = :meetingId
+    LEFT JOIN MissionParticipant mp ON mp.mission.id = m.id
+    WHERE m.meeting.id = :meetingId
     """)
-    List<LeaderMeetingMissionDetailResponseDto> findLeaderMeetingMissions(@Param("meetingId") Long meetingId, @Param("participantId") Long participantId);
+    List<LeaderMeetingMissionDetailResponseDto> findLeaderMeetingMissions(@Param("meetingId") Long meetingId);
 
 }
\ No newline at end of file
diff --git a/src/main/java/com/dnd/snappy/domain/mission/service/MissionDetailService.java b/src/main/java/com/dnd/snappy/domain/mission/service/MissionDetailService.java
index c62fe9f..8c85805 100644
--- a/src/main/java/com/dnd/snappy/domain/mission/service/MissionDetailService.java
+++ b/src/main/java/com/dnd/snappy/domain/mission/service/MissionDetailService.java
@@ -38,7 +38,7 @@ public List<LeaderMeetingMissionDetailResponseDto> findLeaderMeetingMissions(Lon
         findByMeetingIdOrThrow(meetingId);
         missionValidationService.validateIsLeader(participantId, meetingId);
 
-        return missionRepository.findLeaderMeetingMissions(meetingId, participantId);
+        return missionRepository.findLeaderMeetingMissions(meetingId);
     }
 
     private Meeting findByMeetingIdOrThrow(Long meetingId) {
diff --git a/src/test/java/com/dnd/snappy/controller/v1/mission/MissionDetailControllerTest.java b/src/test/java/com/dnd/snappy/controller/v1/mission/MissionDetailControllerTest.java
index b8ab2c3..48fd676 100644
--- a/src/test/java/com/dnd/snappy/controller/v1/mission/MissionDetailControllerTest.java
+++ b/src/test/java/com/dnd/snappy/controller/v1/mission/MissionDetailControllerTest.java
@@ -62,6 +62,7 @@ void findLeaderMeetingMissions() throws Exception {
         Meeting meeting = createMeeting();
         Participant leader = createParticipant(meeting, Role.LEADER);
         Participant participant = createParticipant(meeting, Role.PARTICIPANT);
+        Participant participant2 = createParticipant(meeting, Role.PARTICIPANT);
 
         Mission mission = Mission.builder()
                 .meeting(meeting)
@@ -69,6 +70,12 @@ void findLeaderMeetingMissions() throws Exception {
                 .build();
         missionRepository.save(mission);
 
+        Mission mission2 = Mission.builder()
+                .meeting(meeting)
+                .content("미션 내용2")
+                .build();
+        missionRepository.save(mission2);
+
         MissionParticipant missionParticipant = MissionParticipant.builder()
                 .participant(participant)
                 .mission(mission)
diff --git a/src/test/java/com/dnd/snappy/domain/mission/service/MissionDetailServiceTest.java b/src/test/java/com/dnd/snappy/domain/mission/service/MissionDetailServiceTest.java
index bd48bd5..efe3790 100644
--- a/src/test/java/com/dnd/snappy/domain/mission/service/MissionDetailServiceTest.java
+++ b/src/test/java/com/dnd/snappy/domain/mission/service/MissionDetailServiceTest.java
@@ -88,7 +88,7 @@ void findLeaderMeetingMissions() {
         given(meetingRepository.findById(meetingId)).willReturn(Optional.of(meeting));
         doNothing().when(missionValidationService).validateIsLeader(participantId, meetingId);
 
-        given(missionRepository.findLeaderMeetingMissions(meetingId, participantId)).willReturn(
+        given(missionRepository.findLeaderMeetingMissions(meetingId)).willReturn(
                 List.of(
                         new LeaderMeetingMissionDetailResponseDto(1L, "미션 내용 1", false),
                         new LeaderMeetingMissionDetailResponseDto(2L, "미션 내용 2", false),