diff --git a/Gameton-06/Assets/Gameton/Scripts/GameData/StageClearData.cs b/Gameton-06/Assets/Gameton/Scripts/GameData/StageClearData.cs
index c39c91a1..8cabf799 100644
--- a/Gameton-06/Assets/Gameton/Scripts/GameData/StageClearData.cs
+++ b/Gameton-06/Assets/Gameton/Scripts/GameData/StageClearData.cs
@@ -15,18 +15,18 @@ namespace TON
         // 클리어한 스테이지 아이디
         public string stageId;
         // 클리어에 소요된 시간
-        public int clearTime;
+        public float clearTime;
         // 클리어 시간에 따른 별점
         public int starRating;
         // 클리어한 날짜와 시간 정보
         public string dateTime;
 
-        public StageClearData(string characterId, string stageId, int clearTime, int starRating)
+        public StageClearData(string characterId, string stageId, float clearTime, int starRating)
         {
             id = $"SC{DateTime.UtcNow:yyyyMMddHHmmss}-{characterId}-{stageId}";
             this.characterId = characterId;
             this.stageId = stageId;
-            this.clearTime = clearTime;
+            this.clearTime = Mathf.Round(clearTime * 100f) / 100f; ;
             this.starRating = starRating;
             dateTime = DateTime.UtcNow.ToString();
         }
diff --git a/Gameton-06/Assets/Gameton/Scripts/GameStage/StageManager.cs b/Gameton-06/Assets/Gameton/Scripts/GameStage/StageManager.cs
index 4c5d2fef..04ec05a4 100644
--- a/Gameton-06/Assets/Gameton/Scripts/GameStage/StageManager.cs
+++ b/Gameton-06/Assets/Gameton/Scripts/GameStage/StageManager.cs
@@ -1,23 +1,46 @@
 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
+using UnityEngine.Assertions;
 
 namespace TON
 {
     public class StageManager : SingletonBase<StageManager>
     {
+        public List<StageClearData> stageClearDatas { get; private set; }
 
         private float stageStartTime; // 스테이지 시작 시간
 
+        public void Initialize()
+        {
+            LoadStageClearData();
+        }
+
+        private void LoadStageClearData()
+        {
+#if UNITY_EDITOR
+            JSONLoader.SaveJsonToPersistentData("stageClear");
+#endif
+            stageClearDatas = JSONLoader.LoadJsonFromPersistentData<List<StageClearData>>("stageClear");
+            if (stageClearDatas == null)
+            {
+                stageClearDatas = new List<StageClearData>();
+            }
+        }
+
+        private void SaveStageClearData()
+        {
+            Assert.IsTrue(JSONLoader.SaveUpdatedJsonToPersistentData(stageClearDatas, "stageClear"));
+            Initialize();
+        }
+
         public void StartStage()
         {
             stageStartTime = Time.time;
         }
 
-        public int GetStarCount()
+        public int GetStarCount(float elapsedTime)
         {
-            float elapsedTime = Time.time - stageStartTime;
-
             if (elapsedTime <= 180f)
                 return 3;
             else if (elapsedTime <= 300f)
@@ -26,11 +49,16 @@ namespace TON
                 return 1;
         }
 
-        public void StageClear()
+        public void StageClear(string characterId, string stageId)
         {
-            int starCount = GetStarCount();
+            float clearTime = Time.time - stageStartTime;
+            int starCount = GetStarCount(clearTime);
             Debug.Log($"스테이지 클리어! 별 개수: {starCount}");
-            // UI 업데이트, 데이터 저장 로직 추가 가능
+
+            // UI 업데이트, 데이터 저장 로직 추가
+            StageClearData stageClearData = new StageClearData(characterId, stageId, clearTime, starCount);
+            stageClearDatas.Add(stageClearData);
+            SaveStageClearData();
         }
 
     }