diff --git a/src/main/java/com/issueDive/dto/IssueFilterRequest.java b/src/main/java/com/issueDive/dto/IssueFilterRequest.java
index 9745d60..19f5455 100644
--- a/src/main/java/com/issueDive/dto/IssueFilterRequest.java
+++ b/src/main/java/com/issueDive/dto/IssueFilterRequest.java
@@ -6,7 +6,7 @@
 import java.util.List;
 
 public record IssueFilterRequest(
-        @Pattern(regexp = "open|closed|OPEN|CLOSED") String status,
+        @Pattern(regexp = "open|closed|in_progress|OPEN|CLOSED|IN_PROGRESS", message = "상태 값은 open, closed, in_progress 중 하나여야 합니다.") String status,
         Long authorId,
         Long assigneeId,
         List<Long> labelIds,
diff --git a/src/main/java/com/issueDive/entity/IssueStatus.java b/src/main/java/com/issueDive/entity/IssueStatus.java
index 043995a..63103d7 100644
--- a/src/main/java/com/issueDive/entity/IssueStatus.java
+++ b/src/main/java/com/issueDive/entity/IssueStatus.java
@@ -1,5 +1,5 @@
 package com.issueDive.entity;
 
 public enum IssueStatus {
-    OPEN, CLOSED
+    OPEN, IN_PROGRESS, CLOSED
 }
diff --git a/src/main/java/com/issueDive/service/IssueService.java b/src/main/java/com/issueDive/service/IssueService.java
index 412d4ad..fc7624e 100644
--- a/src/main/java/com/issueDive/service/IssueService.java
+++ b/src/main/java/com/issueDive/service/IssueService.java
@@ -154,7 +154,7 @@ public IssueResponse updateIssue(Long id, UpdateIssueRequest request) {
     /**
      * 이슈 상태 변경
      * @param id 상태 변경할 Issue ID
-     * @param status 변경할 상태 (OPEN, CLOSED)
+     * @param status 변경할 상태 (OPEN, IN_PROGRESS, CLOSED)
      * @return 상태가 변경된 IssueResponse
      */
     public IssueResponse changeIssueStatus(Long id, String status) {
@@ -165,7 +165,7 @@ public IssueResponse changeIssueStatus(Long id, String status) {
         try {
             newStatus = IssueStatus.valueOf(status.toUpperCase());
         } catch (IllegalArgumentException e) {
-            throw new ValidationException(ErrorCode.InvalidStatus, "status must be either OPEN or CLOSED");
+            throw new ValidationException(ErrorCode.InvalidStatus, "status must be one of OPEN, IN_PROGRESS, or CLOSED");
         }
 
         issue.setStatus(newStatus);
diff --git a/src/test/java/com/issueDive/service/IssueServiceTest.java b/src/test/java/com/issueDive/service/IssueServiceTest.java
index 76f9c80..b7b735f 100644
--- a/src/test/java/com/issueDive/service/IssueServiceTest.java
+++ b/src/test/java/com/issueDive/service/IssueServiceTest.java
@@ -12,8 +12,11 @@
 import com.issueDive.repository.LabelRepository;
 import com.issueDive.repository.UserRepository;
 import com.issueDive.service.IssueService;
+import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.ExtendWith;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.ValueSource;
 import org.mockito.InjectMocks;
 import org.mockito.Mock;
 import org.mockito.junit.jupiter.MockitoExtension;
@@ -212,9 +215,11 @@ void deleteIssue_success() {
      * 이슈 상태 변경 테스트
      * 정상 케이스: OPEN 또는 CLOSED 상태로 변경 시 정상 응답 확인
      */
-    @Test
-    void changeIssueStatus_validStatus_success() {
-        // given
+    @ParameterizedTest
+    @ValueSource(strings = {"OPEN", "IN_PROGRESS", "CLOSED"})
+    @DisplayName("유효한 상태값(OPEN, IN_PROGRESS, CLOSED)으로 이슈 상태 변경 성공")
+    void changeIssueStatus_validStatus_success(String validStatus) {
+// given
         Issue issue = Issue.builder()
                 .id(1L)
                 .status(IssueStatus.OPEN)
@@ -225,10 +230,10 @@ void changeIssueStatus_validStatus_success() {
         when(issueRepository.save(any(Issue.class))).thenAnswer(invocation -> invocation.getArgument(0));
 
         //when
-        IssueResponse response = issueService.changeIssueStatus(1L, "CLOSED");
+        IssueResponse response = issueService.changeIssueStatus(1L, validStatus);
 
         // then
-        assertEquals("CLOSED", response.status());
+        assertEquals(validStatus, response.status());
         verify(issueRepository).save(issue);
     }
 
@@ -237,6 +242,7 @@ void changeIssueStatus_validStatus_success() {
      * 예외 케이스1: 존재하지 않는 이슈 ID 요청 시 NotFoundException 발생 확인
      */
     @Test
+    @DisplayName("존재하지 않는 이슈의 상태 변경 시도 시 NotFoundException 발생")
     void changeIssueStatus_issueNotFound() {
         // given
         when(issueRepository.findById(99L)).thenReturn(Optional.empty());
@@ -253,6 +259,7 @@ void changeIssueStatus_issueNotFound() {
      * 예외 케이스2: 유효하지 않은 상태 값 요청 시 ValidationException 발생 확인
      */
     @Test
+    @DisplayName("유효하지 않은 상태값으로 이슈 상태 변경 시도 시 ValidationException 발생")
     void changeIssueStatus_invalidStatus_throwsValidationException() {
         // given
         Issue issue = Issue.builder()
@@ -267,7 +274,7 @@ void changeIssueStatus_invalidStatus_throwsValidationException() {
         ValidationException ex = assertThrows(ValidationException.class,
                 () -> issueService.changeIssueStatus(1L, "INVALID_STATUS"));
 
-        assertTrue(ex.getMessage().contains("status must be either OPEN or CLOSED"));
+        assertTrue(ex.getMessage().contains("status must be one of OPEN, IN_PROGRESS, or CLOSED"));
     }
 
     /**