diff --git a/xm-core/src/main/java/com/xm/core/service/XmTaskSbillDetailService.java b/xm-core/src/main/java/com/xm/core/service/XmTaskSbillDetailService.java
index ea360b84..e8dd6480 100644
--- a/xm-core/src/main/java/com/xm/core/service/XmTaskSbillDetailService.java
+++ b/xm-core/src/main/java/com/xm/core/service/XmTaskSbillDetailService.java
@@ -82,7 +82,12 @@ public class XmTaskSbillDetailService extends BaseService {
                 detail.setSfee(BigDecimal.ZERO);
             }
         }
-        detail.setSamt(detail.getAmt().subtract(detail.getShareFee()).subtract(detail.getSfee()));
+        if(detail.getOthFee()==null){
+            detail.setOthFee(BigDecimal.ZERO);
+        }else if(detail.getOthFee().compareTo(BigDecimal.ZERO)<0){
+            detail.setOthFee(BigDecimal.ZERO);
+        }
+        detail.setSamt(detail.getAmt().subtract(detail.getShareFee()).subtract(detail.getSfee()).subtract(detail.getOthFee()));
 
     }
 }