diff --git a/.env.usa b/.env.usa
index dd7bcc34..5c371961 100644
--- a/.env.usa
+++ b/.env.usa
@@ -1,6 +1,6 @@
 # just a flag
-ENV = 'production'
-NODE_ENV = 'production'
+ENV = 'usa'
+NODE_ENV = 'usa'
 # base public path
 VUE_APP_BASE_PATH = 'https://ei-code-prod.s3.amazonaws.com/2024-04-30/'
 
diff --git a/src/assets/zzlogo-usa.png b/src/assets/zzlogo-usa.png
new file mode 100644
index 00000000..e9dfb7ce
Binary files /dev/null and b/src/assets/zzlogo-usa.png differ
diff --git a/src/views/login/index.vue b/src/views/login/index.vue
index 27c39894..0afac904 100644
--- a/src/views/login/index.vue
+++ b/src/views/login/index.vue
@@ -7,6 +7,7 @@
       <div class="login-l">
         <div class="login-logo">
           <img v-if="language === 'zh'" src="@/assets/zzlogo2.png" alt="" />
+          <img v-else-if="NODE_ENV === 'usa'" src="@/assets/zzlogo-usa.png" alt="" />
           <img v-else src="@/assets/zzlogo4.png" alt="" />
         </div>
         <div class="login-image">
@@ -186,6 +187,7 @@ export default {
   components: { TopLang, Vcode },
   data() {
     return {
+      NODE_ENV: process.env.NODE_ENV,
       VUE_APP_OSS_CONFIG_REGION: process.env.VUE_APP_OSS_CONFIG_REGION,
       aboutVisible: false,
       loginForm: {
diff --git a/src/views/trials/trials-layout/components/trialsNavbar.vue b/src/views/trials/trials-layout/components/trialsNavbar.vue
index ee83bc71..9ccd5339 100644
--- a/src/views/trials/trials-layout/components/trialsNavbar.vue
+++ b/src/views/trials/trials-layout/components/trialsNavbar.vue
@@ -2,6 +2,7 @@
   <div class="trials-navbar" style="position: relative">
     <div class="leftMenu">
       <img v-if="language === 'zh'" src="@/assets/zzlogo2.png" alt="">
+      <img v-else-if="NODE_ENV === 'usa'" src="@/assets/zzlogo-usa.png" alt="" />
       <img v-else src="@/assets/zzlogo4.png" alt="">
       <span style="white-space:nowrap;">
         <!-- 中心影像系统（EICS） -->
@@ -74,7 +75,8 @@ export default {
       isReviewer: false,
       userTypeShortName: zzSessionStorage.getItem('userTypeShortName'),
       notice: '',
-      VUE_APP_OSS_CONFIG_REGION: process.env.VUE_APP_OSS_CONFIG_REGION
+      VUE_APP_OSS_CONFIG_REGION: process.env.VUE_APP_OSS_CONFIG_REGION,
+      NODE_ENV: process.env.NODE_ENV,
     }
   },
   computed: {