diff --git a/src/test/java/com/gxwebsoft/support/ApprovalTestData.java b/src/test/java/com/gxwebsoft/support/ApprovalTestData.java
index 884bca9..d93527c 100644
--- a/src/test/java/com/gxwebsoft/support/ApprovalTestData.java
+++ b/src/test/java/com/gxwebsoft/support/ApprovalTestData.java
@@ -170,14 +170,41 @@ public class ApprovalTestData {
   }
 
   private void deleteInstance(Long instanceId) {
-    master.update("DELETE FROM approval_attachment WHERE instance_id = ?", instanceId);
-    master.update("DELETE FROM approval_record WHERE instance_id = ?", instanceId);
-    master.update("DELETE FROM approval_task WHERE instance_id = ?", instanceId);
-    master.update("DELETE FROM approval_completion_form WHERE instance_id = ?", instanceId);
-    master.update("DELETE FROM approval_coordination_form WHERE instance_id = ?", instanceId);
+    for (String table : INSTANCE_CHILD_TABLES) {
+      try {
+        master.update("DELETE FROM " + table + " WHERE instance_id = ?", instanceId);
+      } catch (Exception ignored) {
+        // 该单据的表尚未在当前环境创建：跳过，不阻断清理
+      }
+    }
     master.update("DELETE FROM approval_instance WHERE id = ?", instanceId);
   }
 
+  /**
+   * 按实例外键清理的子表清单：新增单据表时在此追加，否则用例数据会残留在共享库。
+   *
+   * <p>明细子表也带 {@code instance_id}，与业务主表一样按实例删除。</p>
+   */
+  private static final String[] INSTANCE_CHILD_TABLES = {
+    "approval_attachment",
+    "approval_field_change",
+    "approval_record",
+    "approval_task",
+    "approval_completion_form",
+    "approval_coordination_form",
+    // 二期单据（表不存在时下面会跳过）
+    "approval_settlement_item",
+    "approval_settlement_form",
+    "approval_receipt_form",
+    "approval_vehicle_item",
+    "approval_vehicle_form",
+    "approval_venue_form",
+    "approval_coupon_item",
+    "approval_coupon_form",
+    "approval_facility_item",
+    "approval_facility_form"
+  };
+
   private Integer insert(JdbcTemplate jdbcTemplate, String sql, Object... args) {
     KeyHolder keyHolder = new GeneratedKeyHolder();
     jdbcTemplate.update(connection -> {