diff --git a/backend/src/main/java/io/metersphere/api/dto/definition/request/sampler/MsHTTPSamplerProxy.java b/backend/src/main/java/io/metersphere/api/dto/definition/request/sampler/MsHTTPSamplerProxy.java
index 5ffb469dca..a48936b2b4 100644
--- a/backend/src/main/java/io/metersphere/api/dto/definition/request/sampler/MsHTTPSamplerProxy.java
+++ b/backend/src/main/java/io/metersphere/api/dto/definition/request/sampler/MsHTTPSamplerProxy.java
@@ -421,14 +421,15 @@ public class MsHTTPSamplerProxy extends MsTestElement {
                             if (StringUtils.isNotBlank(this.getPath())) {
                                 envPath += this.getPath();
                             }
+                            sampler.setPort(httpConfig.getPort());
                             if (StringUtils.isNotEmpty(httpConfig.getDomain())) {
                                 sampler.setDomain(URLDecoder.decode(httpConfig.getDomain(), "UTF-8"));
                                 sampler.setProtocol(httpConfig.getProtocol());
                             } else {
                                 sampler.setDomain("");
                                 sampler.setProtocol("");
+                                sampler.setPort(-1);
                             }
-                            sampler.setPort(httpConfig.getPort());
                         } else {
                             URL urlObject = new URL(this.path);
                             envPath = StringUtils.equals(urlObject.getPath(), "/") ? "" : urlObject.getFile();