diff --git a/cf-module-infra/cf-module-infra-biz/src/main/java/com/cf/imes/module/infra/framework/file/config/ExternalFileProperties.java b/cf-module-infra/cf-module-infra-biz/src/main/java/com/cf/imes/module/infra/framework/file/config/ExternalFileProperties.java
new file mode 100644
index 000000000..50263dad9
--- /dev/null
+++ b/cf-module-infra/cf-module-infra-biz/src/main/java/com/cf/imes/module/infra/framework/file/config/ExternalFileProperties.java
@@ -0,0 +1,19 @@
+package com.cf.imes.module.infra.framework.file.config;
+
+import lombok.Data;
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.context.annotation.Configuration;
+
+/**
+ * 外部文件访问地址配置。
+ */
+@Data
+@Configuration
+@ConfigurationProperties(prefix = "chenfeng.file")
+public class ExternalFileProperties {
+
+    /**
+     * 拼接数据库外部文件路径的 CDN 域名。
+     */
+    private String externalDomain = "https://cdn.fzcfkj.com/";
+}
diff --git a/cf-module-infra/cf-module-infra-biz/src/main/java/com/cf/imes/module/infra/service/file/FileServiceImpl.java b/cf-module-infra/cf-module-infra-biz/src/main/java/com/cf/imes/module/infra/service/file/FileServiceImpl.java
index 972c15b17..f9161fe93 100644
--- a/cf-module-infra/cf-module-infra-biz/src/main/java/com/cf/imes/module/infra/service/file/FileServiceImpl.java
+++ b/cf-module-infra/cf-module-infra-biz/src/main/java/com/cf/imes/module/infra/service/file/FileServiceImpl.java
@@ -8,6 +8,7 @@ import com.cf.imes.framework.common.util.Assert.AssertUtils;
 import com.cf.imes.framework.common.util.io.FileUtils;
 import com.cf.imes.module.infra.framework.file.core.client.FileClient;
 import com.cf.imes.module.infra.framework.file.core.utils.FileTypeUtils;
+import com.cf.imes.module.infra.framework.file.config.ExternalFileProperties;
 import com.cf.imes.framework.mybatis.core.query.LambdaQueryWrapperX;
 import com.cf.imes.module.infra.controller.admin.file.vo.file.FilePageReqVO;
 import com.cf.imes.module.infra.dal.dataobject.file.FileDO;
@@ -40,6 +41,9 @@ public class FileServiceImpl implements FileService {
     @Resource
     private FileMapper fileMapper;
 
+    @Resource
+    private ExternalFileProperties externalFileProperties;
+
     private static final String CLIENT_ERR_NOTIFICATION = "客户端({}) 不能为空";
 
     @Override
@@ -200,7 +204,25 @@ public class FileServiceImpl implements FileService {
      */
     @Override
     public String getExternalFileUrl(Long id) {
-        return validateFileExists(id).getUrl();
+        String storedUrl = validateFileExists(id).getUrl();
+        return joinUrl(externalFileProperties.getExternalDomain(), storedUrl);
+    }
+
+    /**
+     * 拼接配置域名和数据库文件路径，并消除连接处的重复斜杠。
+     */
+    private String joinUrl(String domain, String path) {
+        AssertUtils.notEmpty(domain, FILE_IS_EMPTY);
+        AssertUtils.notEmpty(path, FILE_IS_EMPTY);
+        int domainEnd = domain.length();
+        while (domainEnd > 0 && domain.charAt(domainEnd - 1) == '/') {
+            domainEnd--;
+        }
+        int pathStart = 0;
+        while (pathStart < path.length() && path.charAt(pathStart) == '/') {
+            pathStart++;
+        }
+        return domain.substring(0, domainEnd) + "/" + path.substring(pathStart);
     }
 
     /**
diff --git a/cf-module-infra/cf-module-infra-biz/src/main/resources/application-dev.yaml b/cf-module-infra/cf-module-infra-biz/src/main/resources/application-dev.yaml
index 5a320442c..40b3ce7fd 100644
--- a/cf-module-infra/cf-module-infra-biz/src/main/resources/application-dev.yaml
+++ b/cf-module-infra/cf-module-infra-biz/src/main/resources/application-dev.yaml
@@ -126,6 +126,8 @@ spring:
 
 # 晨丰配置项，设置当前项目所有自定义的配置
 chenfeng:
+  file:
+    external-domain: https://cdn.fzcfkj.com/
   info:
     version: 1.0.0
     base-package: com.cf.imes.module.infra
@@ -186,4 +188,4 @@ chenfeng:
 
 mybatis-plus:
   configuration:
-    log-impl: org.apache.ibatis.logging.nologging.NoLoggingImpl
\ No newline at end of file
+    log-impl: org.apache.ibatis.logging.nologging.NoLoggingImpl
diff --git a/cf-module-infra/cf-module-infra-biz/src/main/resources/application-local.yaml b/cf-module-infra/cf-module-infra-biz/src/main/resources/application-local.yaml
index f9da298ee..837736b4b 100644
--- a/cf-module-infra/cf-module-infra-biz/src/main/resources/application-local.yaml
+++ b/cf-module-infra/cf-module-infra-biz/src/main/resources/application-local.yaml
@@ -144,6 +144,8 @@ logging:
 
 # 晨丰配置项，设置当前项目所有自定义的配置
 chenfeng:
+  file:
+    external-domain: https://cdn.fzcfkj.com/
   info:
     version: 1.0.0
     base-package: com.cf.imes.module.infra
@@ -207,4 +209,4 @@ chenfeng:
     enable: false
   encrypt:
     enable: false
-    publicKey: cfimes
\ No newline at end of file
+    publicKey: cfimes