diff --git a/modules/i3plus-core-apiservice/src/main/java/cn/estsh/i3plus/core/apiservice/util/OrderNoMakeUtil.java b/modules/i3plus-core-apiservice/src/main/java/cn/estsh/i3plus/core/apiservice/util/OrderNoMakeUtil.java
index b865b6b..8734d8f 100644
--- a/modules/i3plus-core-apiservice/src/main/java/cn/estsh/i3plus/core/apiservice/util/OrderNoMakeUtil.java
+++ b/modules/i3plus-core-apiservice/src/main/java/cn/estsh/i3plus/core/apiservice/util/OrderNoMakeUtil.java
@@ -50,11 +50,19 @@ public class OrderNoMakeUtil {
         if (orderNoRule.getSerialNo() > 0 && orderNo.indexOf(PlatformConstWords.SERIAL_NO) != -1) {
             String newNo = orderNo.substring(0,orderNo.indexOf(PlatformConstWords.SERIAL_NO));
             String oldNo = orderNoRule.getOrderNo().substring(0,orderNo.indexOf(PlatformConstWords.SERIAL_NO));
+
+            long serialNo = orderNoRule.getSerialNo() + orderNoRule.getSerialNoIncrement();
+
             // 前缀（日期）不同后是否重置流水号
             if(!newNo.equals(oldNo) && orderNoRule.getIsCycle() == CommonEnumUtil.TRUE_OR_FALSE.TRUE.getValue()){
                 orderNoRule.setSerialNo(orderNoRule.getSerialNoSeed());
             } else {
-                orderNoRule.setSerialNo(orderNoRule.getSerialNo() + orderNoRule.getSerialNoIncrement());
+                orderNoRule.setSerialNo(serialNo);
+            }
+
+            if (CommonEnumUtil.TRUE_OR_FALSE.valueOfBoolean(orderNoRule.getIsFixedLength())
+                    && String.valueOf(serialNo).length() > orderNoRule.getSerialNoLength()) {
+                orderNoRule.setSerialNo(orderNoRule.getSerialNoSeed());
             }
         } else {
             orderNoRule.setSerialNo(orderNoRule.getSerialNoSeed() * orderNoRule.getSerialNoIncrement());