diff --git a/src/main/java/com/moplus/moplus_server/client/problem/controller/ProblemGetController.java b/src/main/java/com/moplus/moplus_server/client/problem/controller/ProblemGetController.java
index a38d994..35017a9 100644
--- a/src/main/java/com/moplus/moplus_server/client/problem/controller/ProblemGetController.java
+++ b/src/main/java/com/moplus/moplus_server/client/problem/controller/ProblemGetController.java
@@ -6,7 +6,7 @@
 import com.moplus.moplus_server.client.problem.dto.response.ProblemClientGetResponse;
 import com.moplus.moplus_server.client.problem.dto.response.ProblemClientThumbnailResponse;
 import com.moplus.moplus_server.client.problem.dto.response.PublishClientGetResponse;
-import com.moplus.moplus_server.client.problem.service.ProblemsGetService;
+import com.moplus.moplus_server.client.problem.service.ClientProblemsGetService;
 import com.moplus.moplus_server.global.annotation.AuthUser;
 import com.moplus.moplus_server.member.domain.Member;
 import io.swagger.v3.oas.annotations.Operation;
@@ -25,7 +25,7 @@
 @RequiredArgsConstructor
 public class ProblemGetController {
 
-    private final ProblemsGetService problemsGetService;
+    private final ClientProblemsGetService clientProblemsGetService;
 
     @GetMapping("problem/all/{year}/{month}")
     @Operation(summary = "전체 문제 조회", description = "월별 문제들에 대한 진행도와 정보들을 조회합니다.")
@@ -34,7 +34,7 @@ public ResponseEntity<List<AllProblemGetResponse>> getAllProblem(
             @PathVariable("month") int month,
             @AuthUser Member member
     ) {
-        return ResponseEntity.ok(problemsGetService.getAllProblem(member.getId(), year, month));
+        return ResponseEntity.ok(clientProblemsGetService.getAllProblem(member.getId(), year, month));
     }
 
     @GetMapping("problem/{publishId}")
@@ -43,7 +43,7 @@ public ResponseEntity<PublishClientGetResponse> getProblemsInPublish(
             @PathVariable("publishId") Long publishId,
             @AuthUser Member member
     ) {
-        return ResponseEntity.ok(problemsGetService.getProblemsInPublish(member.getId(), publishId));
+        return ResponseEntity.ok(clientProblemsGetService.getProblemsInPublish(member.getId(), publishId));
     }
 
     @GetMapping("problem/{publishId}/{problemId}")
@@ -53,7 +53,7 @@ public ResponseEntity<ProblemClientGetResponse> getProblem(
             @PathVariable("problemId") Long problemId,
             @AuthUser Member member
     ) {
-        return ResponseEntity.ok(problemsGetService.getProblem(member.getId(), publishId, problemId));
+        return ResponseEntity.ok(clientProblemsGetService.getProblem(member.getId(), publishId, problemId));
     }
 
     @GetMapping("problem/{publishId}/{problemId}/{childProblemId}")
@@ -65,7 +65,7 @@ public ResponseEntity<ChildProblemClientGetResponse> getChildProblem(
             @AuthUser Member member
     ) {
         return ResponseEntity.ok(
-                problemsGetService.getChildProblem(member.getId(), publishId, problemId, childProblemId));
+                clientProblemsGetService.getChildProblem(member.getId(), publishId, problemId, childProblemId));
     }
 
     @GetMapping("problem/thumbnail/{publishId}/{problemId}")
@@ -74,7 +74,7 @@ public ResponseEntity<ProblemClientThumbnailResponse> getProblemThumbnail(
             @PathVariable Long publishId,
             @PathVariable Long problemId
     ) {
-        return ResponseEntity.ok(problemsGetService.getProblemThumbnail(publishId, problemId));
+        return ResponseEntity.ok(clientProblemsGetService.getProblemThumbnail(publishId, problemId));
     }
 
     @GetMapping("problem/child/{publishId}/{problemId}")
@@ -83,6 +83,6 @@ public ResponseEntity<ChildProblemsClientGetResponse> getChildProblems(
             @PathVariable Long publishId,
             @PathVariable Long problemId
     ) {
-        return ResponseEntity.ok(problemsGetService.getChildProblems(publishId, problemId));
+        return ResponseEntity.ok(clientProblemsGetService.getChildProblems(publishId, problemId));
     }
 }
diff --git a/src/main/java/com/moplus/moplus_server/client/problem/service/ProblemsGetService.java b/src/main/java/com/moplus/moplus_server/client/problem/service/ClientProblemsGetService.java
similarity index 97%
rename from src/main/java/com/moplus/moplus_server/client/problem/service/ProblemsGetService.java
rename to src/main/java/com/moplus/moplus_server/client/problem/service/ClientProblemsGetService.java
index 27c16e1..bbcb063 100644
--- a/src/main/java/com/moplus/moplus_server/client/problem/service/ProblemsGetService.java
+++ b/src/main/java/com/moplus/moplus_server/client/problem/service/ClientProblemsGetService.java
@@ -6,8 +6,8 @@
 import com.moplus.moplus_server.client.problem.dto.response.ChildProblemClientGetResponse;
 import com.moplus.moplus_server.client.problem.dto.response.ChildProblemsClientGetResponse;
 import com.moplus.moplus_server.client.problem.dto.response.ProblemClientGetResponse;
-import com.moplus.moplus_server.client.problem.dto.response.ProblemFeedProgressesGetResponse;
 import com.moplus.moplus_server.client.problem.dto.response.ProblemClientThumbnailResponse;
+import com.moplus.moplus_server.client.problem.dto.response.ProblemFeedProgressesGetResponse;
 import com.moplus.moplus_server.client.problem.dto.response.PublishClientGetResponse;
 import com.moplus.moplus_server.client.submit.domain.ChildProblemSubmit;
 import com.moplus.moplus_server.client.submit.domain.ChildProblemSubmitStatus;
@@ -29,14 +29,13 @@
 import java.time.LocalDate;
 import java.util.ArrayList;
 import java.util.List;
-import java.util.stream.IntStream;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
 @Service
 @RequiredArgsConstructor
-public class ProblemsGetService {
+public class ClientProblemsGetService {
 
     private static final int MIN_MONTH = 1;
     private static final int MAX_MONTH = 12;
@@ -134,10 +133,8 @@ public ProblemClientGetResponse getProblem(Long memberId, Long publishId, Long p
                 .map(ChildProblem::getId)
                 .toList();
 
-        List<ChildProblemSubmitStatus> childProblemStatuses = childProblemSubmitRepository.findAllByMemberIdAndPublishIdAndChildProblemIdIn(
-                        memberId, publishId, childProblemIds).stream()
-                .map(ChildProblemSubmit::getStatus)
-                .toList();
+        List<ChildProblemSubmitStatus> childProblemStatuses = childProblemSubmitRepository
+                .findAllChildProblemSubmitStatusWithDefault(memberId, publishId, childProblemIds);
 
         return ProblemClientGetResponse.of(problem, problemSubmit.getStatus(), childProblemStatuses, number + 1);
     }
diff --git a/src/main/java/com/moplus/moplus_server/client/submit/repository/ChildProblemSubmitRepository.java b/src/main/java/com/moplus/moplus_server/client/submit/repository/ChildProblemSubmitRepository.java
index 33a5be8..7ff08e7 100644
--- a/src/main/java/com/moplus/moplus_server/client/submit/repository/ChildProblemSubmitRepository.java
+++ b/src/main/java/com/moplus/moplus_server/client/submit/repository/ChildProblemSubmitRepository.java
@@ -1,20 +1,43 @@
 package com.moplus.moplus_server.client.submit.repository;
 
 import com.moplus.moplus_server.client.submit.domain.ChildProblemSubmit;
+import com.moplus.moplus_server.client.submit.domain.ChildProblemSubmitStatus;
 import com.moplus.moplus_server.global.error.exception.ErrorCode;
 import com.moplus.moplus_server.global.error.exception.NotFoundException;
 import java.util.List;
+import java.util.Map;
 import java.util.Optional;
+import java.util.stream.Collectors;
 import org.springframework.data.jpa.repository.JpaRepository;
 
 public interface ChildProblemSubmitRepository extends JpaRepository<ChildProblemSubmit, Long> {
-    Optional<ChildProblemSubmit> findByMemberIdAndPublishIdAndChildProblemId(Long memberId, Long publishId, Long childProblemId);
+    Optional<ChildProblemSubmit> findByMemberIdAndPublishIdAndChildProblemId(Long memberId, Long publishId,
+                                                                             Long childProblemId);
 
-    default ChildProblemSubmit findByMemberIdAndPublishIdAndChildProblemIdElseThrow(Long memberId, Long publishId, Long childProblemId) {
+    default ChildProblemSubmit findByMemberIdAndPublishIdAndChildProblemIdElseThrow(Long memberId, Long publishId,
+                                                                                    Long childProblemId) {
         return findByMemberIdAndPublishIdAndChildProblemId(memberId, publishId, childProblemId).orElseThrow(
                 () -> new NotFoundException(ErrorCode.CHILD_PROBLEM_SUBMIT_NOT_CONFIRMED));
     }
 
     List<ChildProblemSubmit> findAllByMemberIdAndPublishIdAndChildProblemIdIn(Long memberId, Long publishId,
-                                                                            List<Long> childProblemIds);
+                                                                              List<Long> childProblemIds);
+
+    default List<ChildProblemSubmitStatus> findAllChildProblemSubmitStatusWithDefault(Long memberId, Long publishId,
+                                                                                      List<Long> childProblemIds) {
+        List<ChildProblemSubmit> submits = findAllByMemberIdAndPublishIdAndChildProblemIdIn(memberId, publishId,
+                childProblemIds);
+
+        // childProblemId를 key로 하는 Map 생성
+        Map<Long, ChildProblemSubmitStatus> statusMap = submits.stream()
+                .collect(Collectors.toMap(
+                        ChildProblemSubmit::getChildProblemId,
+                        ChildProblemSubmit::getStatus
+                ));
+
+        // 모든 childProblemId에 대해 status 리스트 생성
+        return childProblemIds.stream()
+                .map(id -> statusMap.getOrDefault(id, ChildProblemSubmitStatus.NOT_STARTED))
+                .collect(Collectors.toList());
+    }
 }