diff --git a/src/main/java/com/sample/trend/strategy/AutoGridStrategy.java b/src/main/java/com/sample/trend/strategy/AutoGridStrategy.java
index c7e7961..4a2c827 100644
--- a/src/main/java/com/sample/trend/strategy/AutoGridStrategy.java
+++ b/src/main/java/com/sample/trend/strategy/AutoGridStrategy.java
@@ -420,29 +420,14 @@ public class AutoGridStrategy extends BaseStrategy {
 
     // ======================== 网格挂单 ========================
 
+    /**
+     * 初始化仅挂下方一格买单，与运行中补单逻辑一致，避免网格间距调整后批量挂单失配。
+     */
     private void placeInitialBuyGrids() {
         if (currentPrice == null || currentGridGap == null) {
             fetchCurrentPriceFromRest();
         }
-        if (currentPrice == null || currentGridGap == null) {
-            return;
-        }
-
-        synchronized (tradeLock) {
-            int remainingSlots = gridCount - pendingBuyOrders.size();
-            if (remainingSlots <= 0) {
-                return;
-            }
-            BigDecimal price = alignPriceDown(currentPrice, currentGridGap);
-            int placed = 0;
-            while (price.compareTo(lowerBound) >= 0 && placed < remainingSlots) {
-                if (!hasBuyOrderAt(price)) {
-                    placeLimitBuyOrder(price);
-                    placed++;
-                }
-                price = price.subtract(currentGridGap);
-            }
-        }
+        replenishBuyGrids();
     }
 
     private void replenishBuyGrids() {