diff --git a/Assets/Scripts/Item/Show3DCamera.cs b/Assets/Scripts/Item/Show3DCamera.cs
index bf70c00b..d5456f95 100644
--- a/Assets/Scripts/Item/Show3DCamera.cs
+++ b/Assets/Scripts/Item/Show3DCamera.cs
@@ -27,7 +27,7 @@ public class Show3DCamera : MonoBehaviour
 
     public RenderTexture texture;
     public bool lockMove = false;
-
+    private const float DRAG_THRESHOLD = 1f; // 拖拽阈值
 
     private Vector2 mouseDownPosition; // 记录鼠标按下时的位置
 
@@ -162,10 +162,17 @@ public class Show3DCamera : MonoBehaviour
                 mouseDownPosition = Input.mousePosition;
             }
 
-            // 修改后的旋转条件（排除缩放状态）
-            if (!isZooming && (isTouching ? (Input.GetTouch(0).phase == TouchPhase.Moved) : Input.GetMouseButton(0)))
+            bool shouldRotate = false;
+            if (Input.GetMouseButton(0))
             {
-                // 移除距离判断直接响应
+                // 使用现有参数计算拖拽距离
+                float dragDistance = Vector2.Distance(Input.mousePosition, mouseDownPosition);
+                shouldRotate = dragDistance > DRAG_THRESHOLD;
+            }
+            // 修改后的旋转条件（排除缩放状态）
+            if (!isZooming && (isTouching ? (Input.GetTouch(0).phase == TouchPhase.Moved) : shouldRotate))
+            {
+                
                 RotateCamera();
             }
 
@@ -322,7 +329,6 @@ public class Show3DCamera : MonoBehaviour
     /// </summary>
     public void FocusObj(Vector3 target, float distance = 1f, float moveTime = -1)
     {
-        // 计算相机前方一定距离的位置，作为Cube的目标位置
         // 可以根据需要调整这个距离
         Vector3 cameraPos = target - transform.forward * distance;
 
@@ -398,6 +404,9 @@ public class Show3DCamera : MonoBehaviour
         {
             deltaX = Input.GetAxis("Mouse X") * 10; // 保持原有灵敏度
             deltaY = Input.GetAxis("Mouse Y") * 10;
+            // 当累计移动量超过阈值时才生效
+            if (Mathf.Abs(deltaX) < DRAG_THRESHOLD && Mathf.Abs(deltaY) < DRAG_THRESHOLD)
+                return;
         }
 
         // 应用DPI缩放（关键！）