diff --git a/gplus/dao.go b/gplus/dao.go
index e4e9c70..dfff50e 100644
--- a/gplus/dao.go
+++ b/gplus/dao.go
@@ -429,6 +429,10 @@ func buildSqlAndArgs[T any](expressions []any, sqlBuilder *strings.Builder, quer
 				queryArgs = append(queryArgs, segment.value)
 			}
 		case *QueryCond[T]:
+			// 当子条件不存在查询表达式时，无需进行递归处理
+			if len(segment.queryExpressions) == 0 {
+				continue
+			}
 			sqlBuilder.WriteString(constants.LeftBracket + " ")
 			// 递归处理条件
 			queryArgs = buildSqlAndArgs[T](segment.queryExpressions, sqlBuilder, queryArgs)
diff --git a/gplus/query.go b/gplus/query.go
index e520993..d40a2b8 100644
--- a/gplus/query.go
+++ b/gplus/query.go
@@ -266,27 +266,31 @@ func (q *QueryCond[T]) Having(having string, args ...any) *QueryCond[T] {
 
 // And 拼接 AND
 func (q *QueryCond[T]) And(fn ...func(q *QueryCond[T])) *QueryCond[T] {
-	q.addExpression(&sqlKeyword{keyword: constants.And})
 	if len(fn) > 0 {
+		// fix bug: https://github.com/acmestack/gorm-plus/issues/74
+		q.addExpression(&sqlKeyword{keyword: constants.And})
 		nestQuery := &QueryCond[T]{}
 		fn[0](nestQuery)
 		q.queryExpressions = append(q.queryExpressions, nestQuery)
 		q.last = nestQuery
 		return q
 	}
+	q.addExpression(&sqlKeyword{keyword: constants.And})
 	return q
 }
 
 // Or 拼接 OR
 func (q *QueryCond[T]) Or(fn ...func(q *QueryCond[T])) *QueryCond[T] {
-	q.addExpression(&sqlKeyword{keyword: constants.Or})
 	if len(fn) > 0 {
+		// fix bug: https://github.com/acmestack/gorm-plus/issues/74
+		q.addExpression(&sqlKeyword{keyword: constants.Or})
 		nestQuery := &QueryCond[T]{}
 		fn[0](nestQuery)
 		q.queryExpressions = append(q.queryExpressions, nestQuery)
 		q.last = nestQuery
 		return q
 	}
+	q.addExpression(&sqlKeyword{keyword: constants.Or})
 	return q
 }