diff --git a/jero-boot-base/jero-boot-base-core/src/main/java/com/jero/common/exception/JeroBootException.java b/jero-boot-base/jero-boot-base-core/src/main/java/com/jero/common/exception/JeroBootException.java
index 0de8f964..3776bc5e 100644
--- a/jero-boot-base/jero-boot-base-core/src/main/java/com/jero/common/exception/JeroBootException.java
+++ b/jero-boot-base/jero-boot-base-core/src/main/java/com/jero/common/exception/JeroBootException.java
@@ -1,11 +1,16 @@
 package com.jero.common.exception;
 
+import com.jero.common.util.MessageUtils;
+
 public class JeroBootException extends RuntimeException {
 	private static final long serialVersionUID = 1L;
 
 	public JeroBootException(String message){
 		super(message);
 	}
+	public JeroBootException(String message, Object... args) {
+		super(MessageUtils.getMessage(message,args));
+	}
 	
 	public JeroBootException(Throwable cause)
 	{
diff --git a/jero-boot-modules/src/main/java/com/jero/modules/tag/entity/LawsTag.java b/jero-boot-modules/src/main/java/com/jero/modules/tag/entity/LawsTag.java
index a632593a..785d387f 100644
--- a/jero-boot-modules/src/main/java/com/jero/modules/tag/entity/LawsTag.java
+++ b/jero-boot-modules/src/main/java/com/jero/modules/tag/entity/LawsTag.java
@@ -51,8 +51,14 @@ public class LawsTag implements Serializable {
     @TableField(exist = false)
     private String sysOrgCode;
 
-    /**文档库-表id*/
-    private String cgformHeadId;
+    /**表名*/
+    private String tableName;
+
+    /**字段名字*/
+    private String dbFieldName;
+
+    /**旧字段名字*/
+    private String dbFieldNameOld;
 
     /**所属模块(1文档库,0文档拆分)*/
     @Dict(dicCode = "module")
@@ -132,9 +138,6 @@ public class LawsTag implements Serializable {
     /**逻辑删除标识 0未删 1已删*/
     private Integer isDelete;
 
-    /**字段名字*/
-    private String dbFieldName;
-
     /**是否主键 0否 1是*/
     private Integer dbIsKey;
 
diff --git a/jero-boot-modules/src/main/java/com/jero/modules/tag/service/impl/ILawsTagServiceImpl.java b/jero-boot-modules/src/main/java/com/jero/modules/tag/service/impl/ILawsTagServiceImpl.java
index 5aefb6ab..cc4038fc 100644
--- a/jero-boot-modules/src/main/java/com/jero/modules/tag/service/impl/ILawsTagServiceImpl.java
+++ b/jero-boot-modules/src/main/java/com/jero/modules/tag/service/impl/ILawsTagServiceImpl.java
@@ -10,8 +10,10 @@ import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.jero.common.constant.CommonConstant;
 import com.jero.common.constant.enums.LanguageEnum;
 import com.jero.common.constant.enums.YesOrNoEnum;
+import com.jero.common.exception.JeroBootException;
 import com.jero.common.system.query.QueryGenerator;
 import com.jero.common.system.vo.LoginUser;
+import com.jero.common.util.MessageUtils;
 import com.jero.generater.modules.online.cgform.service.impl.OnlCgformFieldServiceImpl;
 import com.jero.modules.document.enums.FieldTypeEnum;
 import com.jero.modules.enums.FixedFieldEnum;
@@ -137,14 +139,19 @@ public class ILawsTagServiceImpl extends ServiceImpl<LawsTagMapper, LawsTag> imp
 			lawsTag.setUpdateBy(sysUser.getUsername());
 			String pinYin = HanYuPinYinUtil.changeToNumberPinYin(lawsTag.getDbFieldTxt());
 			lawsTag.setDbFieldName(pinYin.replace(" ","_"));
-
+			String dbFieldName = lawsTag.getDbFieldName();
 			// 数据库的字段名称必须以字母开头，若不以字母开头加上固定的grp前缀
-			if (!Validator.isMatchRegex("^[a-zA-Z].*$", lawsTag.getDbFieldName())){
-				lawsTag.setDbFieldName("grp_" + lawsTag.getDbFieldName());
+			if (!Validator.isMatchRegex("^[a-zA-Z].*$", dbFieldName)){
+				lawsTag.setDbFieldName("grp_" + dbFieldName);
 			}
+
+			if (dbFieldName.length() > 64){
+				throw new JeroBootException("tag.add.字段名称太长",dbFieldName);
+			}
+			executeDDL(lawsTag,"add");
+			lawsTag.setDbFieldNameOld(dbFieldName);
 		}
 		save(lawsTag);
-		executeDDL(lawsTag,"add");
 	}
 
 
@@ -194,7 +201,7 @@ public class ILawsTagServiceImpl extends ServiceImpl<LawsTagMapper, LawsTag> imp
 		}
 
 		//字段名称设置成拼音+下划线,存入数据库
-		String pinYin = HanYuPinYinUtil.changeToNumberPinYin(lawsTag.getDbFieldName());
+		String pinYin = HanYuPinYinUtil.changeToNumberPinYin(lawsTag.getDbFieldTxt());
 		lawsTag.setDbFieldName(pinYin.replace(" ","_"));
 		//处理DBLength为null的情况，默认为100
 		Integer dbLength = lawsTag.getDbLength();
@@ -232,9 +239,12 @@ public class ILawsTagServiceImpl extends ServiceImpl<LawsTagMapper, LawsTag> imp
 		if (!Validator.isMatchRegex("^[a-zA-Z].*$", dbFieldName)){
 			lawsTag.setDbFieldName("grp_" + dbFieldName);
 		}
-		saveOrUpdate(lawsTag);
+		if (dbFieldName.length() > 64){
+			throw new JeroBootException("tag.add.字段名称太长",dbFieldName);
+		}
 		executeDDL(lawsTag,"modify");
-
+		lawsTag.setDbFieldNameOld(dbFieldName);
+		saveOrUpdate(lawsTag);
 	}
 
 	private void executeDDL(LawsTag lawsTag, String modifyOrAdd) {
@@ -252,7 +262,14 @@ public class ILawsTagServiceImpl extends ServiceImpl<LawsTagMapper, LawsTag> imp
 		}
 		String tableName = FileTableIdEnum.getTableName(isModel);
 		String dbFieldTxt = lawsTag.getDbFieldTxt();
-		String sql = "alter table " + tableName + " " + modifyOrAdd + " " + dbFieldName + " " + type + " null comment '"+dbFieldTxt+"'";
+		String dbFieldNameOld = lawsTag.getDbFieldNameOld();
+		String sql;
+		if (StringUtils.isNotBlank(dbFieldNameOld)){
+			sql = "alter table " + tableName + " change " + dbFieldNameOld + " " + dbFieldName + " " + type + " null comment '"+dbFieldTxt+"'";
+		}else {
+			sql = "alter table " + tableName + " " + modifyOrAdd + " " + dbFieldName + " " + type + " null comment '"+dbFieldTxt+"'";
+		}
+
 		lawsTagMapper.executeDDL(sql);
 	}
 
diff --git a/jero-boot-single-startup/src/main/resources/i18n/messages.properties b/jero-boot-single-startup/src/main/resources/i18n/messages.properties
index b9e21dcd..60e71448 100644
--- a/jero-boot-single-startup/src/main/resources/i18n/messages.properties
+++ b/jero-boot-single-startup/src/main/resources/i18n/messages.properties
@@ -1,5 +1,6 @@
 message=1
 message.operate.error=123{0}
+tag.add.\u5B57\u6BB5\u540D\u79F0\u592A\u957F=\u60A8\u8BBE\u7F6E\u7684\u5B57\u6BB5\u540D\u4E3A{0}\uFF0C\u6700\u957F\u4E3A64\u4F4D\u5B57\u7B26\u3002
 tag.delete.\u5305\u542B\u56FA\u5B9A\u5B57\u6BB5,\u4E0D\u53EF\u5220\u9664=\u5305\u542B\u56FA\u5B9A\u5B57\u6BB5,\u4E0D\u53EF\u5220\u9664
 tag.edit.\u56FA\u5B9A\u5B57\u6BB5,\u4E0D\u53EF\u4FEE\u6539=\u56FA\u5B9A\u5B57\u6BB5,\u4E0D\u53EF\u4FEE\u6539
 tag.edit.\u56FA\u5B9A\u5B57\u6BB5,\u4E0D\u53EF\u5220\u9664=\u56FA\u5B9A\u5B57\u6BB5,\u4E0D\u53EF\u5220\u9664
diff --git a/jero-boot-single-startup/src/main/resources/i18n/messages_en.properties b/jero-boot-single-startup/src/main/resources/i18n/messages_en.properties
index 8a008652..552bd9d2 100644
--- a/jero-boot-single-startup/src/main/resources/i18n/messages_en.properties
+++ b/jero-boot-single-startup/src/main/resources/i18n/messages_en.properties
@@ -1,5 +1,6 @@
 message=1
 message.operate.error=123{0}
+tag.add.\u5B57\u6BB5\u540D\u79F0\u592A\u957F=The field name you set is {0}, with a maximum length of 64 characters.
 tag.delete.\u5305\u542B\u56FA\u5B9A\u5B57\u6BB5,\u4E0D\u53EF\u5220\u9664=It contains fixed fields and cannot be deleted.
 tag.edit.\u56FA\u5B9A\u5B57\u6BB5,\u4E0D\u53EF\u4FEE\u6539=Fixed field, which cannot be modified.
 tag.edit.\u56FA\u5B9A\u5B57\u6BB5,\u4E0D\u53EF\u5220\u9664=Fixed field, cannot be deleted.
diff --git a/jero-boot-single-startup/src/main/resources/i18n/messages_zh.properties b/jero-boot-single-startup/src/main/resources/i18n/messages_zh.properties
index b9e21dcd..60e71448 100644
--- a/jero-boot-single-startup/src/main/resources/i18n/messages_zh.properties
+++ b/jero-boot-single-startup/src/main/resources/i18n/messages_zh.properties
@@ -1,5 +1,6 @@
 message=1
 message.operate.error=123{0}
+tag.add.\u5B57\u6BB5\u540D\u79F0\u592A\u957F=\u60A8\u8BBE\u7F6E\u7684\u5B57\u6BB5\u540D\u4E3A{0}\uFF0C\u6700\u957F\u4E3A64\u4F4D\u5B57\u7B26\u3002
 tag.delete.\u5305\u542B\u56FA\u5B9A\u5B57\u6BB5,\u4E0D\u53EF\u5220\u9664=\u5305\u542B\u56FA\u5B9A\u5B57\u6BB5,\u4E0D\u53EF\u5220\u9664
 tag.edit.\u56FA\u5B9A\u5B57\u6BB5,\u4E0D\u53EF\u4FEE\u6539=\u56FA\u5B9A\u5B57\u6BB5,\u4E0D\u53EF\u4FEE\u6539
 tag.edit.\u56FA\u5B9A\u5B57\u6BB5,\u4E0D\u53EF\u5220\u9664=\u56FA\u5B9A\u5B57\u6BB5,\u4E0D\u53EF\u5220\u9664