diff --git a/PodCode/Classes/CRBoxInputCellProperty.h b/PodCode/Classes/CRBoxInputCellProperty.h
index 1a0c9b2..30be9be 100644
--- a/PodCode/Classes/CRBoxInputCellProperty.h
+++ b/PodCode/Classes/CRBoxInputCellProperty.h
@@ -141,7 +141,8 @@ typedef void(^ConfigCellShadowBlock)(CALayer *layer);
  若想一次性修改所有输入值，请使用 CRBoxInputView中的'reloadInputString'方法
  禁止修改该值！！！（除非你知道该怎么使用它。）
  */
-@property (copy, nonatomic) NSString *originValue;
+@property (copy, nonatomic, readonly) NSString *originValue;
+- (void)setMyOriginValue:(NSString *)originValue;
 
 /**
  密文类型
diff --git a/PodCode/Classes/CRBoxInputCellProperty.m b/PodCode/Classes/CRBoxInputCellProperty.m
index 0898de9..31a6d72 100644
--- a/PodCode/Classes/CRBoxInputCellProperty.m
+++ b/PodCode/Classes/CRBoxInputCellProperty.m
@@ -9,6 +9,13 @@
 #import "CRBoxInputCellProperty.h"
 #import <Masonry/Masonry.h>
 
+@interface CRBoxInputCellProperty ()
+
+@property (copy, nonatomic, readwrite) NSString *originValue;
+
+@end
+
+
 @implementation CRBoxInputCellProperty
 
 - (instancetype)init
@@ -142,4 +149,9 @@
     return customSecurityView;
 }
 
+#pragma mark - Setter
+- (void)setMyOriginValue:(NSString *)originValue {
+    _originValue = originValue;
+}
+
 @end
diff --git a/PodCode/Classes/CRBoxInputView.m b/PodCode/Classes/CRBoxInputView.m
index 2b90e1e..8a5db96 100755
--- a/PodCode/Classes/CRBoxInputView.m
+++ b/PodCode/Classes/CRBoxInputView.m
@@ -389,9 +389,9 @@ typedef NS_ENUM(NSInteger, CRBoxTextChangeType) {
         // setOriginValue
         NSUInteger focusIndex = _valueArr.count;
         if (_valueArr.count > 0 && indexPath.row <= focusIndex - 1) {
-            cellProperty.originValue = _valueArr[indexPath.row];
+            [cellProperty setMyOriginValue:_valueArr[indexPath.row]];
         }else{
-            cellProperty.originValue = @"";
+            [cellProperty setMyOriginValue:@""];
         }
         
         cell.boxInputCellProperty = cellProperty;