diff --git a/ruoyi-common/ruoyi-common-oss/src/main/java/org/dromara/common/oss/factory/OssFactory.java b/ruoyi-common/ruoyi-common-oss/src/main/java/org/dromara/common/oss/factory/OssFactory.java
index 763b090e..7773a47b 100644
--- a/ruoyi-common/ruoyi-common-oss/src/main/java/org/dromara/common/oss/factory/OssFactory.java
+++ b/ruoyi-common/ruoyi-common-oss/src/main/java/org/dromara/common/oss/factory/OssFactory.java
@@ -13,6 +13,7 @@ import lombok.extern.slf4j.Slf4j;
 
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.locks.ReentrantLock;
 
 /**
  * 文件上传Factory
@@ -48,16 +49,17 @@ public class OssFactory {
         // 使用租户标识避免多个租户相同key实例覆盖
         String key = properties.getTenantId() + ":" + configKey;
         OssClient client = CLIENT_CACHE.get(key);
-        if (client == null) {
-            CLIENT_CACHE.put(key, new OssClient(configKey, properties));
-            log.info("创建OSS实例 key => {}", configKey);
-            return CLIENT_CACHE.get(key);
-        }
-        // 配置不相同则重新构建
-        if (!client.checkPropertiesSame(properties)) {
-            CLIENT_CACHE.put(key, new OssClient(configKey, properties));
-            log.info("重载OSS实例 key => {}", configKey);
-            return CLIENT_CACHE.get(key);
+        // 客户端不存在或配置不相同则重新构建
+        if (client == null || !client.checkPropertiesSame(properties)) {
+            ReentrantLock lock = new ReentrantLock();
+            lock.lock();
+            try {
+                CLIENT_CACHE.put(key, new OssClient(configKey, properties));
+                log.info("创建OSS实例 key => {}", configKey);
+                return CLIENT_CACHE.get(key);
+            } finally {
+                lock.unlock();
+            }
         }
         return client;
     }