diff --git a/src/assets/logo1.png b/src/assets/logo1.png
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diff --git a/src/assets/logo2.png b/src/assets/logo2.png
deleted file mode 100644
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diff --git a/src/assets/logo4.png b/src/assets/logo4.png
deleted file mode 100644
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diff --git a/src/assets/logo5.png b/src/assets/logo5.png
deleted file mode 100644
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diff --git a/src/assets/logo6.png b/src/assets/logo6.png
deleted file mode 100644
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diff --git a/src/assets/logo7.png b/src/assets/logo7.png
deleted file mode 100644
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diff --git a/src/assets/logo3.png b/src/assets/title-logo.png
similarity index 100%
rename from src/assets/logo3.png
rename to src/assets/title-logo.png
diff --git a/src/views/login/index.vue b/src/views/login/index.vue
index a11db3ba..7584ccc6 100644
--- a/src/views/login/index.vue
+++ b/src/views/login/index.vue
@@ -21,9 +21,13 @@
       <div class="login-r">
         <div class="title-container">
           <!-- IRC Management System -->
-          <!-- <div class="system-title" v-if="NODE_ENV==='usa'">{{ $t("login:title:system_title") }}</div>
-          <div class="title" v-else>{{ $t("login:title:system") }}</div> -->
-          <img :src="titleLogo" alt="" @click.stop="changeTitleLogo" class="title-logo"/>
+          <img
+            src="@/assets/title-logo.png"
+            alt=""
+            class="title-logo"
+            v-if="NODE_ENV === 'usa'"
+          />
+          <div class="title" v-else>{{ $t("login:title:system") }}</div>
         </div>
         <el-form
           ref="loginForm"
@@ -191,20 +195,11 @@ import TopLang from "./topLang";
 // import NoticeMarquee from '../trials/trials-layout/components/noticeMarquee'
 import Vcode from "vue-puzzle-vcode";
 import Img1 from "@/assets/pic-2.png";
-import logo1 from "@/assets/logo1.png";
-import logo2 from "@/assets/logo2.png";
-import logo3 from "@/assets/logo3.png";
-import logo4 from "@/assets/logo4.png";
-import logo5 from "@/assets/logo5.png";
-import logo6 from "@/assets/logo6.png";
-import logo7 from "@/assets/logo7.png";
 export default {
   name: "Login",
   components: { TopLang, Vcode },
   data() {
     return {
-      titleLogo: logo1,
-      titleLogoIndex: 1,
       NODE_ENV: process.env.NODE_ENV,
       VUE_APP_OSS_CONFIG_REGION: process.env.VUE_APP_OSS_CONFIG_REGION,
       aboutVisible: false,
@@ -271,35 +266,6 @@ export default {
   },
   methods: {
     ...mapMutations({ setLanguage: "lang/setLanguage" }),
-    changeTitleLogo() {
-      this.titleLogoIndex++;
-      switch (this.titleLogoIndex) {
-        case 1:
-          this.titleLogo = logo1;
-          break;
-        case 2:
-          this.titleLogo = logo2;
-          break;
-        case 3:
-          this.titleLogo = logo3;
-          break;
-        case 4:
-          this.titleLogo = logo4;
-          break;
-        case 5:
-          this.titleLogo = logo5;
-          break;
-        case 6:
-          this.titleLogo = logo6;
-          break;
-        case 7:
-          this.titleLogo = logo7;
-          break;
-        default:
-          this.titleLogoIndex = 1;
-          this.titleLogo = logo1;
-      }
-    },
     openAbout() {
       this.aboutVisible = true;
     },
diff --git a/src/views/trials/trials-layout/components/trialsNavbar.vue b/src/views/trials/trials-layout/components/trialsNavbar.vue
index 66754ce8..7b1e590f 100644
--- a/src/views/trials/trials-layout/components/trialsNavbar.vue
+++ b/src/views/trials/trials-layout/components/trialsNavbar.vue
@@ -4,10 +4,12 @@
       <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;" class="system-title" v-if="NODE_ENV==='usa'">
-        <!-- 中心影像系统（EICS） -->
-        {{ $t('trials:trials:title:eics_title') }}
-      </span>
+      <img
+        src="@/assets/title-logo.png"
+        alt=""
+        class="title-logo"
+        v-if="NODE_ENV === 'usa'"
+      />
       <span style="white-space:nowrap;" v-else>
         <!-- 中心影像系统（EICS） -->
         {{ $t('trials:trials:title:eics') }}