diff --git a/src/main/java/com/iflytop/colortitration/app/command/control/transfer/TrayMoveTitrationAreaCommand.java b/src/main/java/com/iflytop/colortitration/app/command/control/transfer/TrayMoveTitrationAreaCommand.java
index 8b85fea..f7988c6 100644
--- a/src/main/java/com/iflytop/colortitration/app/command/control/transfer/TrayMoveTitrationAreaCommand.java
+++ b/src/main/java/com/iflytop/colortitration/app/command/control/transfer/TrayMoveTitrationAreaCommand.java
@@ -32,9 +32,23 @@ public class TrayMoveTitrationAreaCommand extends BaseCommandHandler {
     public CompletableFuture<Void> handle(CommandDTO commandDTO) {
         Integer tubeNum = commandDTO.getIntegerParam("tubeNum");
         String moduleCode = commandDTO.getStringParam("titrationModuleCode");
-        if (StringUtils.isEmpty(moduleCode) || tubeNum == null) {
+        if (tubeNum == null) {
             throw new AppException(ResultCode.INVALID_PARAMETER);//参数缺失
         }
+        if (StringUtils.isEmpty(moduleCode)) {
+            boolean titration1Exist = deviceState.getTitrationModuleStateMap().get(MultipleModuleCode.MODULE_1).isTubeExist();
+            if (!titration1Exist) {
+                moduleCode = MultipleModuleCode.MODULE_1.name();
+            } else {
+                boolean titration2Exist = deviceState.getTitrationModuleStateMap().get(MultipleModuleCode.MODULE_2).isTubeExist();
+                if (!titration2Exist) {
+                    moduleCode = MultipleModuleCode.MODULE_2.name();
+                } else {
+                    throw new AppException(ResultCode.TARGET_MODULE_OCCUPIED);//无空闲的滴定位
+                }
+            }
+
+        }
         MultipleModuleCode titrationModuleCode = MultipleModuleCode.valueOf(moduleCode);
         boolean trayExist = switch (titrationModuleCode) {  //1、首先检测试管所在的托盘传感器的值
             case MultipleModuleCode.MODULE_1 -> deviceState.isTrayExist1();