diff --git a/src/main/java/im/zhaojun/zfile/module/storage/service/impl/QiniuServiceImpl.java b/src/main/java/im/zhaojun/zfile/module/storage/service/impl/QiniuServiceImpl.java
index a2a6599..b6cdea0 100644
--- a/src/main/java/im/zhaojun/zfile/module/storage/service/impl/QiniuServiceImpl.java
+++ b/src/main/java/im/zhaojun/zfile/module/storage/service/impl/QiniuServiceImpl.java
@@ -1,6 +1,8 @@
 package im.zhaojun.zfile.module.storage.service.impl;
 
 import cn.hutool.core.exceptions.ExceptionUtil;
+import cn.hutool.core.util.BooleanUtil;
+import cn.hutool.core.util.StrUtil;
 import com.amazonaws.auth.AWSStaticCredentialsProvider;
 import com.amazonaws.auth.BasicAWSCredentials;
 import com.amazonaws.client.builder.AwsClientBuilder;
@@ -29,6 +31,8 @@ public class QiniuServiceImpl extends AbstractS3BaseFileService<QiniuParam> {
 
     private BucketManager bucketManager;
 
+    private Auth auth;
+
     @Override
     public void init() {
         BasicAWSCredentials credentials = new BasicAWSCredentials(param.getAccessKey(), param.getSecretKey());
@@ -37,7 +41,7 @@ public class QiniuServiceImpl extends AbstractS3BaseFileService<QiniuParam> {
                 .withEndpointConfiguration(new AwsClientBuilder.EndpointConfiguration(param.getEndPoint(), "kodo")).build();
 
         Configuration cfg = new Configuration(Region.autoRegion());
-        Auth auth = Auth.create(param.getAccessKey(), param.getSecretKey());
+        auth = Auth.create(param.getAccessKey(), param.getSecretKey());
         bucketManager = new BucketManager(auth, cfg);
 
         setUploadCors();
@@ -65,7 +69,26 @@ public class QiniuServiceImpl extends AbstractS3BaseFileService<QiniuParam> {
         } catch (QiniuException e) {
             throw ExceptionUtil.wrapRuntime(e);
         }
-        
+
     }
 
+    @Override
+    public String getDownloadUrl(String pathAndName) {
+        String domain = param.getDomain();
+
+        Integer tokenTime = param.getTokenTime();
+        if (param.getTokenTime() == null || param.getTokenTime() < 1) {
+            tokenTime = 1800;
+        }
+
+        String fullPath = StringUtils.concatTrimStartSlashes(param.getBasePath() + pathAndName);
+        // 如果不是私有空间, 且指定了加速域名, 则使用 qiniu 的 sdk 获取下载链接
+        // (使用 s3 sdk 获取到的下载链接替换自动加速域名后无法访问, 故这里使用 qiniu sdk).
+        if (BooleanUtil.isTrue(param.isPrivate()) && StrUtil.isNotEmpty(domain)) {
+            String customDomainFullPath = StringUtils.removeDuplicateSlashes(domain + "/" + StringUtils.encodeAllIgnoreSlashes(fullPath));
+            return auth.privateDownloadUrl(customDomainFullPath, tokenTime);
+        }
+
+        return super.getDownloadUrl(pathAndName);
+    }
 }
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