diff --git a/src/main/java/com/example/letscareer/common/exception/enums/SuccessCode.java b/src/main/java/com/example/letscareer/common/exception/enums/SuccessCode.java
index 46584c7..1fca655 100644
--- a/src/main/java/com/example/letscareer/common/exception/enums/SuccessCode.java
+++ b/src/main/java/com/example/letscareer/common/exception/enums/SuccessCode.java
@@ -25,7 +25,8 @@ public enum SuccessCode {
     INT_REVIEW_SAVE_SUCCESS(HttpStatus.CREATED, "면접 회고 추가 성공"),
     SELF_INTRO_SAVE_SUCCESS(HttpStatus.CREATED, "자기소개 추가 성공"),
     APPEAL_CAREERS_ADD_SUCCESS(HttpStatus.CREATED, "어필할 커리어 추가 성공"),
-    STAGE_ADD_SUCCESS(HttpStatus.CREATED, "전형 단계 추가 성공");
+    STAGE_ADD_SUCCESS(HttpStatus.CREATED, "전형 단계 추가 성공"),
+    STAGE_UPDATE_SUCCESS(HttpStatus.OK, "전형 단계 상태 변경 성공");
 
     private final HttpStatus httpStatus;
     private final String message;
diff --git a/src/main/java/com/example/letscareer/stage/controller/StageController.java b/src/main/java/com/example/letscareer/stage/controller/StageController.java
index f3c6102..3326034 100644
--- a/src/main/java/com/example/letscareer/stage/controller/StageController.java
+++ b/src/main/java/com/example/letscareer/stage/controller/StageController.java
@@ -2,11 +2,14 @@
 
 import com.example.letscareer.common.dto.ApiResponse;
 import com.example.letscareer.common.dto.ErrorResponse;
+import com.example.letscareer.common.dto.SuccessNonDataResponse;
 import com.example.letscareer.common.dto.SuccessResponse;
 import com.example.letscareer.common.exception.enums.SuccessCode;
 import com.example.letscareer.common.exception.model.BadRequestException;
 import com.example.letscareer.common.exception.model.NotFoundException;
+import com.example.letscareer.common.exception.model.ValidationException;
 import com.example.letscareer.stage.dto.request.AddStageRequest;
+import com.example.letscareer.stage.dto.request.UpdateStageStatusRequest;
 import com.example.letscareer.stage.dto.response.AddStageResponse;
 import com.example.letscareer.stage.service.StageService;
 import lombok.RequiredArgsConstructor;
@@ -32,4 +35,19 @@ public ApiResponse addStage(
             return ErrorResponse.error(e.getErrorCode());
         }
     }
+
+    @PutMapping("/schedules/{scheduleId}/stages/{stageId}")
+    public ApiResponse updateStageStatus(
+            @RequestHeader("userId") Long userId,
+            @PathVariable Long scheduleId,
+            @PathVariable Long stageId,
+            @RequestBody UpdateStageStatusRequest request
+    ) {
+        try {
+            stageService.updateStageStatus(userId, scheduleId, stageId, request);
+            return SuccessNonDataResponse.success(SuccessCode.STAGE_UPDATE_SUCCESS);
+        } catch (NotFoundException | BadRequestException e) {
+            return ErrorResponse.error(e.getErrorCode());
+        }
+    }
 }
diff --git a/src/main/java/com/example/letscareer/stage/dto/request/UpdateStageStatusRequest.java b/src/main/java/com/example/letscareer/stage/dto/request/UpdateStageStatusRequest.java
new file mode 100644
index 0000000..ae722b2
--- /dev/null
+++ b/src/main/java/com/example/letscareer/stage/dto/request/UpdateStageStatusRequest.java
@@ -0,0 +1,11 @@
+package com.example.letscareer.stage.dto.request;
+
+import com.example.letscareer.stage.domain.Status;
+import jakarta.persistence.EnumType;
+import jakarta.persistence.Enumerated;
+
+public record UpdateStageStatusRequest(
+        @Enumerated(EnumType.STRING)
+        Status status
+) {
+}
diff --git a/src/main/java/com/example/letscareer/stage/service/StageService.java b/src/main/java/com/example/letscareer/stage/service/StageService.java
index 9fca88c..a6ba234 100644
--- a/src/main/java/com/example/letscareer/stage/service/StageService.java
+++ b/src/main/java/com/example/letscareer/stage/service/StageService.java
@@ -6,8 +6,11 @@
 import com.example.letscareer.stage.domain.Stage;
 import com.example.letscareer.stage.domain.Status;
 import com.example.letscareer.stage.dto.request.AddStageRequest;
+import com.example.letscareer.stage.dto.request.UpdateStageStatusRequest;
 import com.example.letscareer.stage.dto.response.AddStageResponse;
 import com.example.letscareer.stage.repository.StageRepository;
+import com.example.letscareer.user.domain.User;
+import com.example.letscareer.user.repository.UserRepository;
 import jakarta.transaction.Transactional;
 import lombok.RequiredArgsConstructor;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -16,7 +19,7 @@
 import java.time.LocalDate;
 import java.time.Period;
 
-import static com.example.letscareer.common.exception.enums.ErrorCode.SCHEDULE_NOT_FOUND_EXCEPTION;
+import static com.example.letscareer.common.exception.enums.ErrorCode.*;
 
 @Service
 @RequiredArgsConstructor
@@ -25,10 +28,13 @@ public class StageService {
     @Autowired
     private final StageRepository stageRepository;
     private final ScheduleRepository scheduleRepository;
+    private final UserRepository userRepository;
 
     @Transactional
     public AddStageResponse addStage(Long userId, Long scheduleId, AddStageRequest request) {
-        Schedule schedule = scheduleRepository.findById(scheduleId)
+        User user = userRepository.findById(userId)
+                .orElseThrow(() -> new NotFoundException(USER_NOT_FOUND_EXCEPTION));
+        Schedule schedule = scheduleRepository.findByUserAndScheduleId(user, scheduleId)
                 .orElseThrow(() -> new NotFoundException(SCHEDULE_NOT_FOUND_EXCEPTION));
 
         Stage stage = Stage.builder()
@@ -54,9 +60,21 @@ public AddStageResponse addStage(Long userId, Long scheduleId, AddStageRequest r
                 dday);
     }
 
+    @Transactional
+    public void updateStageStatus(Long userId, Long scheduleId, Long stageId, UpdateStageStatusRequest request) {
+        User user = userRepository.findById(userId)
+                .orElseThrow(() -> new NotFoundException(USER_NOT_FOUND_EXCEPTION));
+        Schedule schedule = scheduleRepository.findByUserAndScheduleId(user, scheduleId)
+                .orElseThrow(() -> new NotFoundException(SCHEDULE_NOT_FOUND_EXCEPTION));
+        Stage stage = stageRepository.findByStageIdAndSchedule(stageId, schedule)
+                .orElseThrow(() -> new NotFoundException(STAGE_NOT_FOUND_EXCEPTION));
+
+        stage.setStatus(request.status());
+        stageRepository.save(stage);
+    }
+
     private int calculateDday(LocalDate deadline) {
         int dday = Period.between(LocalDate.now(), deadline).getDays();
         return dday;
     }
-
 }