diff --git a/blade-service/blade-transport/src/main/java/org/springblade/transport/config/BfiProperties.java b/blade-service/blade-transport/src/main/java/org/springblade/transport/config/BfiProperties.java
index 5fe089fe..3d7b078d 100644
--- a/blade-service/blade-transport/src/main/java/org/springblade/transport/config/BfiProperties.java
+++ b/blade-service/blade-transport/src/main/java/org/springblade/transport/config/BfiProperties.java
@@ -115,6 +115,11 @@ public class BfiProperties {
 	 */
 	private ArResult arResult = new ArResult();
 
+	/**
+	 * 金蝶冲销状态回写配置（A102-4/A302-4）
+	 */
+	private WriteOffResult writeOffResult = new WriteOffResult();
+
 	/**
 	 * 金蝶单据锁定补偿配置
 	 */
@@ -374,6 +379,24 @@ public class BfiProperties {
 		private long lockLeaseSeconds = 1800;
 	}
 
+	/**
+	 * 金蝶冲销状态回写配置项（A102-4/A302-4）：定时回写开关、防重键批量查询与结算单批量更新的分批大小，
+	 * 防止单批过大超出金蝶查询接口与批量落库承载能力
+	 */
+	@Data
+	public static class WriteOffResult {
+
+		/**
+		 * 冲销状态回写任务开关，默认关闭（安全兜底），由 Nacos 按环境显式开启
+		 */
+		private boolean syncEnabled = false;
+
+		/**
+		 * 冲销状态批量查询/批量更新分批大小，默认 1000
+		 */
+		private int queryBatchSize = 1000;
+	}
+
 	/**
 	 * 金蝶单据锁定补偿配置项
 	 */
diff --git a/blade-service/blade-transport/src/main/java/org/springblade/transport/service/impl/FormalSettlementServiceImpl.java b/blade-service/blade-transport/src/main/java/org/springblade/transport/service/impl/FormalSettlementServiceImpl.java
index c1751638..05276ac2 100644
--- a/blade-service/blade-transport/src/main/java/org/springblade/transport/service/impl/FormalSettlementServiceImpl.java
+++ b/blade-service/blade-transport/src/main/java/org/springblade/transport/service/impl/FormalSettlementServiceImpl.java
@@ -1172,14 +1172,17 @@ public class FormalSettlementServiceImpl extends BaseServiceImpl<FormalSettlemen
 	 */
 	private String executeWriteOffSync() {
 		long startMillis = System.currentTimeMillis();
-		// 已同步金蝶的结算单才在金蝶存在旧应付/应收单，未同步/生成失败不查询（前端展示 '-'）
+		// 已同步金蝶的结算单才在金蝶存在旧应付/应收单，未同步/生成失败不查询（前端展示 '-'）；
+		// 已冲销为终态不再复查，仅扫未冲销单据（存量 NULL 由 06 脚本回填默认未冲销）
 		List<FormalSettlement> settlements = list(Wrappers.<FormalSettlement>lambdaQuery()
 			.eq(FormalSettlement::getKingdeeSyncStatus, KingdeeBfiConstant.KINGDEE_STATUS_SYNCED)
+			.eq(FormalSettlement::getKingdeeWriteOffStatus, KingdeeBfiConstant.KINGDEE_WRITEOFF_UNWRITTEN)
 			.orderByAsc(FormalSettlement::getId));
 		if (Func.isEmpty(settlements)) {
-			log.info("金蝶冲销状态回写：无已同步结算单");
-			return "金蝶冲销状态回写：无已同步结算单";
+			log.info("金蝶冲销状态回写：无待查未冲销结算单");
+			return "金蝶冲销状态回写：无待查未冲销结算单";
 		}
+		log.info("金蝶冲销状态回写：本轮扫描待查未冲销结算单{}笔", settlements.size());
 		// 结算明细分批一次查全（消除逐单查询 N+1），按结算单 id 分组后按结算类型组装防重键
 		List<Long> settlementIds = settlements.stream().map(FormalSettlement::getId).toList();
 		Map<Long, List<FormalSettlementDetail>> detailsBySettlement = new HashMap<>();
@@ -1209,17 +1212,24 @@ public class FormalSettlementServiceImpl extends BaseServiceImpl<FormalSettlemen
 			}
 		}
 		// A102-4/A302-4 整批一次查询，冲销状态有变化的才落库（updateBatchById 批量更新，避免逐单 update）
+		log.info("金蝶冲销状态回写：防重键组装完成，应付{}个、应收{}个，按批次大小{}分批查询",
+			apSettlementBySrcCode.size(), arSettlementBySrcCode.size(), bfiProperties.getWriteOffResult().getQueryBatchSize());
 		Map<String, Boolean> apWriteOffFlags = kingdeeApBillSyncSupport.queryApBillWriteOffFlags(new ArrayList<>(apSettlementBySrcCode.keySet()));
 		Map<String, Boolean> arWriteOffFlags = kingdeeArBillSyncSupport.queryArBillWriteOffFlags(new ArrayList<>(arSettlementBySrcCode.keySet()));
+		// 金蝶未返回的键按未冲销处理，返回数与组装数差异即金蝶侧查不到单据的规模，留痕便于对账
+		log.info("金蝶冲销状态批量查询完成：应付键返回{}个、应收键返回{}个，未返回键按未冲销处理",
+			apWriteOffFlags.size(), arWriteOffFlags.size());
 		List<FormalSettlement> toUpdateSettlements = new ArrayList<>();
 		apSettlementBySrcCode.forEach((srcCode, settlement) ->
 			this.applyWriteOffFlag(settlement, apWriteOffFlags.get(srcCode), toUpdateSettlements));
 		arSettlementBySrcCode.forEach((srcCode, settlement) ->
 			this.applyWriteOffFlag(settlement, arWriteOffFlags.get(srcCode), toUpdateSettlements));
 		if (Func.isNotEmpty(toUpdateSettlements)) {
-			updateBatchById(toUpdateSettlements);
+			// 批量落库按同一分批大小拆分，避免单批过大
+			updateBatchById(toUpdateSettlements, bfiProperties.getWriteOffResult().getQueryBatchSize());
+			log.info("金蝶冲销状态回写：批量落库完成，本批更新{}笔", toUpdateSettlements.size());
 		}
-		String summary = "金蝶冲销状态回写完成：待查已同步结算单" + (apSettlementBySrcCode.size() + arSettlementBySrcCode.size())
+		String summary = "金蝶冲销状态回写完成：待查未冲销结算单" + (apSettlementBySrcCode.size() + arSettlementBySrcCode.size())
 			+ "笔，回写" + toUpdateSettlements.size() + "笔";
 		log.info("{}，耗时{}ms", summary, System.currentTimeMillis() - startMillis);
 		return summary;
diff --git a/blade-service/blade-transport/src/main/java/org/springblade/transport/support/KingdeeApBillSyncSupport.java b/blade-service/blade-transport/src/main/java/org/springblade/transport/support/KingdeeApBillSyncSupport.java
index a5d74fa9..11f97ce1 100644
--- a/blade-service/blade-transport/src/main/java/org/springblade/transport/support/KingdeeApBillSyncSupport.java
+++ b/blade-service/blade-transport/src/main/java/org/springblade/transport/support/KingdeeApBillSyncSupport.java
@@ -225,7 +225,7 @@ public class KingdeeApBillSyncSupport {
 	 */
 	public Map<String, Boolean> queryApBillWriteOffFlags(List<String> awrpSrcCodes) {
 		Map<String, Boolean> writeOffFlags = new LinkedHashMap<>();
-		batchForeach(awrpSrcCodes, PAY_RESULT_QUERY_BATCH, batch -> {
+		batchForeach(awrpSrcCodes, bfiProperties.getWriteOffResult().getQueryBatchSize(), batch -> {
 			BfiApBillQueryDTO param = new BfiApBillQueryDTO();
 			param.setAwrpSrcCode(batch);
 			param.setAwrpSrcSys(bfiProperties.getSrcSys());
diff --git a/blade-service/blade-transport/src/main/java/org/springblade/transport/support/KingdeeArBillSyncSupport.java b/blade-service/blade-transport/src/main/java/org/springblade/transport/support/KingdeeArBillSyncSupport.java
index 845fc575..763a3371 100644
--- a/blade-service/blade-transport/src/main/java/org/springblade/transport/support/KingdeeArBillSyncSupport.java
+++ b/blade-service/blade-transport/src/main/java/org/springblade/transport/support/KingdeeArBillSyncSupport.java
@@ -163,7 +163,7 @@ public class KingdeeArBillSyncSupport {
 	 */
 	public Map<String, Boolean> queryArBillWriteOffFlags(List<String> arBillSrcCodes) {
 		Map<String, Boolean> writeOffFlags = new LinkedHashMap<>();
-		kingdeeApBillSyncSupport.batchForeach(arBillSrcCodes, AR_RESULT_QUERY_BATCH, batch -> {
+		kingdeeApBillSyncSupport.batchForeach(arBillSrcCodes, bfiProperties.getWriteOffResult().getQueryBatchSize(), batch -> {
 			BfiArBillQueryDTO param = new BfiArBillQueryDTO();
 			param.setAwrpSrcCode(batch);
 			param.setAwrpSrcSys(bfiProperties.getSrcSys());
diff --git a/blade-service/blade-transport/src/main/java/org/springblade/transport/task/KingdeeWriteOffResultTask.java b/blade-service/blade-transport/src/main/java/org/springblade/transport/task/KingdeeWriteOffResultTask.java
new file mode 100644
index 00000000..dd4a0e22
--- /dev/null
+++ b/blade-service/blade-transport/src/main/java/org/springblade/transport/task/KingdeeWriteOffResultTask.java
@@ -0,0 +1,63 @@
+/**
+ * BladeX Commercial License Agreement
+ * Copyright (c) 2018-2099, https://bladex.cn. All rights reserved.
+ * <p>
+ * Use of this software is governed by the Commercial License Agreement obtained after purchasing a license from BladeX.
+ * <p>
+ * 1. This software is for development use only under a valid license from BladeX.
+ * <p>
+ * 2. Redistribution of this software's source code to any third party without a commercial license is strictly prohibited.
+ * <p>
+ * 3. Licensees may copyright their own code but cannot use segments from this software for such purposes.
+ * Copyright of this software remains with BladeX.
+ * <p>
+ * Using this software signifies agreement to this License, and the software must not be used for illegal purposes.
+ * <p>
+ * THIS SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY. The author is not liable for any claims arising from secondary or illegal development.
+ * <p>
+ * Author: Chill Zhuang (bladejava@qq.com)
+ */
+package org.springblade.transport.task;
+
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springblade.transport.config.BfiProperties;
+import org.springblade.transport.service.IFormalSettlementService;
+import org.springframework.cloud.context.config.annotation.RefreshScope;
+import org.springframework.scheduling.annotation.Scheduled;
+import org.springframework.stereotype.Component;
+
+/**
+ * 金蝶冲销状态定时回写任务
+ * <p>
+ * A102-4/A302-4 批量查询已同步结算单对应金蝶旧应付/应收单的 hadwrittenoff（部分冲销视同已冲销），
+ * 回写结算单冲销状态，用于结算单列表展示金蝶旧单是否已冲销。
+ * 业务逻辑收敛在服务方法（分布式锁 + 分批查询 + 批量落库），便于手动触发联调。
+ * <p>
+ * 调度配置（Nacos thirdParty.bfi.writeOffResult.*）：syncEnabled 开关、cron 表达式、queryBatchSize 分批大小。
+ *
+ * @author Chill
+ */
+@Slf4j
+@Component
+@RefreshScope
+@RequiredArgsConstructor
+public class KingdeeWriteOffResultTask {
+
+	private final IFormalSettlementService formalSettlementService;
+	private final BfiProperties bfiProperties;
+
+	/** 金蝶冲销状态回写调度，默认每10分钟执行一次（分钟位与付款结果回写错峰） */
+	@Scheduled(cron = "${thirdParty.bfi.writeOffResult.cron:0 4/10 * * * ?}")
+	public void syncKingdeeWriteOffResult() {
+		if (!bfiProperties.getWriteOffResult().isSyncEnabled()) {
+			return;
+		}
+		try {
+			String summary = formalSettlementService.syncKingdeeWriteOffResult();
+			log.info("定时回写金蝶冲销状态：{}", summary);
+		} catch (Exception exception) {
+			log.error("定时回写金蝶冲销状态异常", exception);
+		}
+	}
+}
diff --git a/blade-service/blade-transport/src/main/java/org/springblade/transport/task/PaymentKingdeeResultTask.java b/blade-service/blade-transport/src/main/java/org/springblade/transport/task/PaymentKingdeeResultTask.java
index e5160721..e5e4fb87 100644
--- a/blade-service/blade-transport/src/main/java/org/springblade/transport/task/PaymentKingdeeResultTask.java
+++ b/blade-service/blade-transport/src/main/java/org/springblade/transport/task/PaymentKingdeeResultTask.java
@@ -86,13 +86,6 @@ public class PaymentKingdeeResultTask {
 		} catch (Exception exception) {
 			log.error("定时回写金蝶开票结果异常", exception);
 		}
-		// ④ A102-4/A302-4 冲销状态回写（结算单列表展示金蝶旧单是否已冲销）
-		try {
-			String summary = formalSettlementService.syncKingdeeWriteOffResult();
-			log.info("定时回写金蝶冲销状态：{}", summary);
-		} catch (Exception exception) {
-			log.error("定时回写金蝶冲销状态异常", exception);
-		}
 	}
 
 	/** 金蝶收票单结果回写调度（异常回收/指定补偿/单号补登），默认每10分钟执行一次 */
diff --git a/doc/sql/transport/lqj/temp/06_blade_formal_settlement_kingdee_writeoff_20261030.sql b/doc/sql/transport/lqj/temp/06_blade_formal_settlement_kingdee_writeoff_20261030.sql
index 34bb320a..a5fc952a 100644
--- a/doc/sql/transport/lqj/temp/06_blade_formal_settlement_kingdee_writeoff_20261030.sql
+++ b/doc/sql/transport/lqj/temp/06_blade_formal_settlement_kingdee_writeoff_20261030.sql
@@ -2,7 +2,7 @@
 -- 列名遵循 MyBatis-Plus 驼峰转下划线默认映射（kingdeeWriteOffStatus -> kingdee_write_off_status，kingdeeWriteOffTime -> kingdee_write_off_time）；
 -- 若存在早期脚本误建的旧列名 kingdee_writeoff_status / kingdee_writeoff_time 则先重命名，否则按缺失新增
 -- 结算单列表展示金蝶侧旧应付/应收单冲销状态：定时任务按 A102-4/A302-4 hadwrittenoff 批量回写，
--- 选单预检/重推闸门实时查询后顺带回写；NULL=未推送金蝶或尚未校验，unwrittenoff-未冲销，writtenoff-已冲销（部分冲销视同已冲销）
+-- 选单预检/重推闸门实时查询后顺带回写；默认 unwrittenoff-未冲销（金蝶单据在未冲销前即视为未冲销，避免首跑全量初始化回写），writtenoff-已冲销（部分冲销视同已冲销）
 
 -- ==================== kingdee_write_off_status ====================
 -- 旧列名重命名（早期脚本版本，不存在则跳过）
@@ -12,7 +12,7 @@ SET @old_col := (
     AND COLUMN_NAME = 'kingdee_writeoff_status'
 );
 SET @ddl_sql = IF(@old_col = 1,
-  'ALTER TABLE `blade_formal_settlement` CHANGE COLUMN `kingdee_writeoff_status` `kingdee_write_off_status` varchar(20) COLLATE utf8mb4_general_ci DEFAULT NULL COMMENT ''金蝶冲销状态：unwrittenoff-未冲销 writtenoff-已冲销（NULL=未推送金蝶或未校验）''',
+  'ALTER TABLE `blade_formal_settlement` CHANGE COLUMN `kingdee_writeoff_status` `kingdee_write_off_status` varchar(20) COLLATE utf8mb4_general_ci DEFAULT ''unwrittenoff'' COMMENT ''金蝶冲销状态：unwrittenoff-未冲销（默认） writtenoff-已冲销''',
   'SELECT 1');
 PREPARE ddl_stmt FROM @ddl_sql;
 EXECUTE ddl_stmt;
@@ -21,7 +21,7 @@ DEALLOCATE PREPARE ddl_stmt;
 -- 缺失则新增（支持重复执行）
 SET @ddl_sql = (
   SELECT IF(COUNT(*) = 0,
-    'ALTER TABLE `blade_formal_settlement` ADD COLUMN `kingdee_write_off_status` varchar(20) COLLATE utf8mb4_general_ci DEFAULT NULL COMMENT ''金蝶冲销状态：unwrittenoff-未冲销 writtenoff-已冲销（NULL=未推送金蝶或未校验）'' AFTER `kingdee_fail_reason`',
+    'ALTER TABLE `blade_formal_settlement` ADD COLUMN `kingdee_write_off_status` varchar(20) COLLATE utf8mb4_general_ci DEFAULT ''unwrittenoff'' COMMENT ''金蝶冲销状态：unwrittenoff-未冲销（默认） writtenoff-已冲销'' AFTER `kingdee_fail_reason`',
     'SELECT 1')
   FROM information_schema.COLUMNS
   WHERE TABLE_SCHEMA = DATABASE()
@@ -32,6 +32,13 @@ PREPARE ddl_stmt FROM @ddl_sql;
 EXECUTE ddl_stmt;
 DEALLOCATE PREPARE ddl_stmt;
 
+-- 存量已同步结算单回填默认未冲销（可重复执行：仅补 NULL 行；未同步单据保持默认值即可，前端按同步状态展示'-'）
+UPDATE `blade_formal_settlement`
+SET `kingdee_write_off_status` = 'unwrittenoff'
+WHERE `kingdee_write_off_status` IS NULL
+  AND `kingdee_sync_status` = 'synced'
+  AND `is_deleted` = 0;
+
 -- ==================== kingdee_write_off_time ====================
 -- 旧列名重命名（早期脚本版本，不存在则跳过）
 SET @old_col := (