diff --git a/src/main/java/com/eod/eod/domain/item/application/ItemClaimService.java b/src/main/java/com/eod/eod/domain/item/application/ItemClaimService.java
index c2a42eb..8e5bb31 100644
--- a/src/main/java/com/eod/eod/domain/item/application/ItemClaimService.java
+++ b/src/main/java/com/eod/eod/domain/item/application/ItemClaimService.java
@@ -54,8 +54,12 @@ public void approveClaim(Long claimId, User currentUser) {
         // 승인 처리
         claim.approve();
 
+        // 물품 승인 처리 (소유권 승인 시 물품도 함께 승인)
+        Item item = claim.getItem();
+        item.processApproval(Item.ApprovalStatus.APPROVED, currentUser);
+
         // 같은 물품에 대한 다른 PENDING 상태의 주장들을 모두 거절
-        Long itemId = claim.getItem().getId();
+        Long itemId = item.getId();
         List<ItemClaim> otherPendingClaims = itemClaimRepository
                 .findByItemIdAndStatus(itemId, ItemClaim.ClaimStatus.PENDING);
 
diff --git a/src/main/java/com/eod/eod/domain/item/model/Item.java b/src/main/java/com/eod/eod/domain/item/model/Item.java
index 2699e14..cc211f7 100644
--- a/src/main/java/com/eod/eod/domain/item/model/Item.java
+++ b/src/main/java/com/eod/eod/domain/item/model/Item.java
@@ -144,6 +144,7 @@ public void processApproval(ApprovalStatus approvalStatus, User approver) {
 
         if (approvalStatus == ApprovalStatus.APPROVED) {
             this.approvalStatus = ApprovalStatus.APPROVED;
+            this.status = ItemStatus.GIVEN;
         } else if (approvalStatus == ApprovalStatus.REJECTED) {
             this.approvalStatus = ApprovalStatus.REJECTED;
         } else {
diff --git a/src/main/java/com/eod/eod/domain/reward/application/RewardGiveService.java b/src/main/java/com/eod/eod/domain/reward/application/RewardGiveService.java
index 8e82f87..808ecc0 100644
--- a/src/main/java/com/eod/eod/domain/reward/application/RewardGiveService.java
+++ b/src/main/java/com/eod/eod/domain/reward/application/RewardGiveService.java
@@ -29,6 +29,11 @@ public void giveRewardToStudent(Long studentId, Long itemId, User currentUser) {
         Item item = itemRepository.findById(itemId)
                 .orElseThrow(() -> new IllegalArgumentException("물품을 찾을 수 없습니다."));
 
+        // 중복 상점 지급 방지
+        if (rewardRecordRepository.existsByItemId(itemId)) {
+            throw new IllegalStateException("이미 상점이 지급된 물품입니다.");
+        }
+
         // 상점 지급 기록 생성 (RewardRecord 도메인에서 권한 및 검증 처리)
         RewardRecord rewardRecord = RewardRecord.builder()
                 .student(student)
diff --git a/src/main/java/com/eod/eod/domain/reward/infrastructure/RewardRecordRepository.java b/src/main/java/com/eod/eod/domain/reward/infrastructure/RewardRecordRepository.java
index eef51b2..0acaff2 100644
--- a/src/main/java/com/eod/eod/domain/reward/infrastructure/RewardRecordRepository.java
+++ b/src/main/java/com/eod/eod/domain/reward/infrastructure/RewardRecordRepository.java
@@ -18,6 +18,9 @@ public interface RewardRecordRepository extends JpaRepository<RewardRecord, Long
             "WHERE r.student.id = :studentId")
     List<RewardRecord> findByStudentId(@Param("studentId") Long studentId);
 
+    // 물품 ID로 상점 지급 중복 여부 확인
+    boolean existsByItemId(Long itemId);
+
     // 날짜, 학년, 반으로 상점 지급 이력 조회 (N+1 방지: item, teacher fetch join)
     @Query("SELECT r FROM RewardRecord r " +
             "JOIN FETCH r.student s " +
diff --git a/src/main/java/com/eod/eod/domain/reward/model/RewardRecord.java b/src/main/java/com/eod/eod/domain/reward/model/RewardRecord.java
index 134ed08..25eddac 100644
--- a/src/main/java/com/eod/eod/domain/reward/model/RewardRecord.java
+++ b/src/main/java/com/eod/eod/domain/reward/model/RewardRecord.java
@@ -38,7 +38,7 @@ public class RewardRecord {
     @Builder
     public RewardRecord(User student, Item item, User teacher) {
         validateTeacherRole(teacher);
-        validateItemNotGiven(item);
+        validateItemGiven(item);
         this.student = student;
         this.item = item;
         this.teacher = teacher;
@@ -52,10 +52,10 @@ private void validateTeacherRole(User user) {
         }
     }
 
-    // 물품이 이미 지급되지 않았는지 검증
-    private void validateItemNotGiven(Item item) {
-        if (item.isGiven()) {
-            throw new IllegalStateException("이미 지급된 물품입니다.");
+    // 물품이 지급 완료 상태인지 검증
+    private void validateItemGiven(Item item) {
+        if (!item.isGiven()) {
+            throw new IllegalStateException("지급 처리되지 않은 물품입니다.");
         }
     }
 }
\ No newline at end of file