diff --git a/ruoyi-admin/src/main/java/com/ruoyi/web/controller/cos/CosStsController.java b/ruoyi-admin/src/main/java/com/ruoyi/web/controller/cos/CosStsController.java
new file mode 100644
index 0000000..529f860
--- /dev/null
+++ b/ruoyi-admin/src/main/java/com/ruoyi/web/controller/cos/CosStsController.java
@@ -0,0 +1,36 @@
+package com.ruoyi.web.controller.cos;
+
+import com.ruoyi.system.service.CosStsService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.annotation.security.PermitAll;
+import java.util.Map;
+
+/**
+ * @Description: sts
+ * @Author: 86187
+ * @Date: 2025/03/20 16:34
+ * @Version: 1.0
+ */
+@RestController
+@RequestMapping("/cos")
+@RequiredArgsConstructor
+public class CosStsController {
+
+    private final CosStsService cosStsService;
+
+    /**
+     * 获取cos临时密钥
+     *
+     * @return sts
+     */
+    @GetMapping("/sts")
+    @PermitAll
+    public Map<String, Object> getCosSts() {
+        return cosStsService.getTempKeys();
+    }
+}
diff --git a/ruoyi-admin/src/main/resources/application.yml b/ruoyi-admin/src/main/resources/application.yml
index c2c809f..6d45895 100644
--- a/ruoyi-admin/src/main/resources/application.yml
+++ b/ruoyi-admin/src/main/resources/application.yml
@@ -173,3 +173,11 @@ dl-rights:
 #  每月发布通告额度
   addNotice: 3
   report: 5
+ #################### 腾讯COS相关配置 ####################
+cos:
+  baseUrl: notice-1348525010.cos.ap-beijing.myqcloud.com
+  accessKey: AKIDDbyY3Wr9D4i9LK6f085pLfleJlz60hAP
+  secretKey: 82kJfnu11ulW5TghV5TecVYP3TghXAZl
+  regionName: ap-beijing
+  bucketName: notice-1348525010
+  folderPrefix: /files
diff --git a/ruoyi-common/pom.xml b/ruoyi-common/pom.xml
index e985d7a..664dbd6 100644
--- a/ruoyi-common/pom.xml
+++ b/ruoyi-common/pom.xml
@@ -70,13 +70,13 @@
             <groupId>org.apache.commons</groupId>
             <artifactId>commons-lang3</artifactId>
         </dependency>
-  
+
         <!-- JSON工具类 -->
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-databind</artifactId>
         </dependency>
-        
+
         <!-- 阿里JSON解析器 -->
         <dependency>
             <groupId>com.alibaba.fastjson2</groupId>
@@ -165,7 +165,12 @@
             <artifactId>mybatis-plus</artifactId>
             <version>3.3.0</version>
         </dependency>
+        <dependency>
+            <groupId>com.qcloud</groupId>
+            <artifactId>cos-sts_api</artifactId>
+            <version>3.1.0</version>
+        </dependency>
 
     </dependencies>
 
-</project>
\ No newline at end of file
+</project>
diff --git a/ruoyi-system/src/main/java/com/ruoyi/system/service/CosStsService.java b/ruoyi-system/src/main/java/com/ruoyi/system/service/CosStsService.java
new file mode 100644
index 0000000..7570b14
--- /dev/null
+++ b/ruoyi-system/src/main/java/com/ruoyi/system/service/CosStsService.java
@@ -0,0 +1,82 @@
+package com.ruoyi.system.service;
+
+import com.tencent.cloud.CosStsClient;
+import com.tencent.cloud.Response;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Service;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.TreeMap;
+
+/**
+ * @Description: sts
+ * @Author: 86187
+ * @Date: 2025/03/20 16:18
+ * @Version: 1.0
+ */
+@Service
+public class CosStsService {
+    // 你的腾讯云账号的 SecretId 和 SecretKey
+    @Value("${cos.accessKey}")
+    private String SECRET_ID;
+    @Value("${cos.secretKey}")
+    private String SECRET_KEY;
+
+    // 存储桶所属的地域，例如 "ap-shanghai"
+    @Value("${cos.regionName}")
+    private String REGION;
+
+    // 你的存储桶名，例如 "example-1250000000"
+    @Value("${cos.bucketName}")
+    private String BUCKET;
+
+    // 临时密钥有效期（单位秒），最长不超过 2 小时（7200 秒）
+    private static final int DURATION_SECONDS = 1800;
+
+    public  Map<String, Object> getTempKeys() {
+        TreeMap<String, Object> config = new TreeMap<String, Object>();
+
+        try {
+            // 云 api 密钥 SecretId
+            config.put("secretId", SECRET_ID);
+            // 云 api 密钥 SecretKey
+            config.put("secretKey", SECRET_KEY);
+            // 临时密钥有效时长，单位是秒
+            config.put("durationSeconds", 1800);
+            // 换成你的 bucket
+            config.put("bucket", BUCKET);
+            // 换成 bucket 所在地区
+            config.put("region", REGION);
+
+            // 可以通过 allowPrefixes 指定前缀数组, 例子： a.jpg 或者 a/* 或者 * (使用通配符*存在重大安全风险, 请谨慎评估使用)
+            config.put("allowPrefixes", new String[] {
+                    "*"
+            });
+
+            // 密钥的权限列表。简单上传和分片需要以下的权限，其他权限列表请看 https://cloud.tencent.com/document/product/436/31923
+            String[] allowActions = new String[] {
+                    // 简单上传
+                    "name/cos:PutObject",
+                    "name/cos:PostObject",
+                    // 分片上传
+                    "name/cos:InitiateMultipartUpload",
+                    "name/cos:ListMultipartUploads",
+                    "name/cos:ListParts",
+                    "name/cos:UploadPart",
+                    "name/cos:CompleteMultipartUpload"
+            };
+            config.put("allowActions", allowActions);
+
+            Response response = CosStsClient.getCredential(config);
+            Map<String, Object> result= new HashMap<>();
+            result.put("credentials", response.credentials);
+            result.put("startTime", response.startTime);
+            result.put("expiredTime", response.expiredTime);
+            return result;
+        } catch (Exception e) {
+            e.printStackTrace();
+            throw new IllegalArgumentException("no valid secret !");
+        }
+    }
+}