diff --git a/xls2ddl/tmpls.py b/xls2ddl/tmpls.py
index 7251921..4824cb5 100644
--- a/xls2ddl/tmpls.py
+++ b/xls2ddl/tmpls.py
@@ -171,6 +171,17 @@ ori_fields = json.loads(fields_str)
 if not filterjson:
 	fields = [ f['name'] for f in ori_fields ]
 	filterjson = default_filterjson(fields, ns)
+	# 字符串字段使用LIKE模糊匹配
+	str_fields = {f['name'] for f in ori_fields if f.get('type') in ('str', 'text')}
+	if filterjson and str_fields:
+	    if not isinstance(filterjson, dict) or 'AND' not in filterjson:
+	        filterjson = {'AND': [filterjson] if filterjson else []}
+	    for fj in filterjson['AND']:
+	        if fj.get('field') in str_fields and fj.get('op') == '=':
+	            var = fj.get('var')
+	            if var and var in ns and ns[var]:
+	                ns[var] = f'%{ns[var]}%'
+	                fj['op'] = 'LIKE'
 {% if logined_userorgid or logined_userid %}
 # 确保 logined 过滤条件始终生效
 if filterjson: