diff --git a/src/main/java/com/iflytop/sgs/app/cmd/control/LiquidReduceCommand.java b/src/main/java/com/iflytop/sgs/app/cmd/control/LiquidReduceCommand.java
index 678d817..28e6bc5 100644
--- a/src/main/java/com/iflytop/sgs/app/cmd/control/LiquidReduceCommand.java
+++ b/src/main/java/com/iflytop/sgs/app/cmd/control/LiquidReduceCommand.java
@@ -46,7 +46,7 @@ public class LiquidReduceCommand extends BaseCommandHandler {
         }
         JSONArray jsonArray = cmdDTO.getJSONArrayParam("columns");//获取参数
         Double height=cmdDTO.getDoubleParam("height");//抽液针头下降高度
-        if(height>50){
+        if(height>54){
             throw new AppException(ResultCode.PARAMETER_OUT_OF_RANGE);
         }
         Assert.isTrue(!jsonArray.isEmpty(), () -> new AppException(ResultCode.INVALID_PARAMETER));//参数校验