diff --git a/blade-service/blade-transport/src/main/java/org/springblade/transport/support/KingdeeReceivedInvoiceSyncSupport.java b/blade-service/blade-transport/src/main/java/org/springblade/transport/support/KingdeeReceivedInvoiceSyncSupport.java
index 72e6cb7b..32411e80 100644
--- a/blade-service/blade-transport/src/main/java/org/springblade/transport/support/KingdeeReceivedInvoiceSyncSupport.java
+++ b/blade-service/blade-transport/src/main/java/org/springblade/transport/support/KingdeeReceivedInvoiceSyncSupport.java
@@ -338,13 +338,13 @@ public class KingdeeReceivedInvoiceSyncSupport {
 		return quantity;
 	}
 
-	/** 明细行单价：unitPrice 空/不可解析按 价税合计/数量 反算（2 位小数） */
+	/** 明细行单价：unitPrice 空/不可解析按 价税合计/数量 反算；金蝶要求小数不超过 4 位，统一 4 位舍入 */
 	private BigDecimal mirrorPrice(String unitPrice, BigDecimal priceTaxTotal, BigDecimal quantity) {
 		BigDecimal price = this.parseMirrorAmountQuietly(unitPrice);
-		if (price != null && price.compareTo(BigDecimal.ZERO) > 0) {
-			return price;
-		}
-		return priceTaxTotal.divide(quantity, 2, RoundingMode.HALF_UP);
+		BigDecimal result = price != null && price.compareTo(BigDecimal.ZERO) > 0
+			? price
+			: priceTaxTotal.divide(quantity, 4, RoundingMode.HALF_UP);
+		return result.setScale(4, RoundingMode.HALF_UP);
 	}
 
 	/** 镜像税率转税率表编码："V"+整数税率（13/13%/0.13→V13）；缺失、零/免税行拦截提示人工 */