diff --git a/ccdi-project/src/main/java/com/ruoyi/ccdi/project/mapper/CcdiBankStatementMapper.java b/ccdi-project/src/main/java/com/ruoyi/ccdi/project/mapper/CcdiBankStatementMapper.java
new file mode 100644
index 0000000..2f2262c
--- /dev/null
+++ b/ccdi-project/src/main/java/com/ruoyi/ccdi/project/mapper/CcdiBankStatementMapper.java
@@ -0,0 +1,24 @@
+package com.ruoyi.ccdi.project.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.ruoyi.ccdi.project.domain.entity.CcdiBankStatement;
+import org.apache.ibatis.annotations.Param;
+
+import java.util.List;
+
+/**
+ * 银行流水Mapper接口
+ *
+ * @author ruoyi
+ * @date 2026-03-04
+ */
+public interface CcdiBankStatementMapper extends BaseMapper<CcdiBankStatement> {
+
+    /**
+     * 批量插入银行流水
+     *
+     * @param list 银行流水列表
+     * @return 插入记录数
+     */
+    int insertBatch(@Param("list") List<CcdiBankStatement> list);
+}