diff --git a/src/components/TerminalTelnet/index.vue b/src/components/TerminalTelnet/index.vue
index daba7162..310e9fb1 100644
--- a/src/components/TerminalTelnet/index.vue
+++ b/src/components/TerminalTelnet/index.vue
@@ -80,16 +80,16 @@ function fnAutoCompleteFilter(input: string, option: any) {
 }
 
 /**自动完成按键触发 */
-function fnAutoCompleteKeydown(evt: any) {
+function fnAutoCompleteKeydown(evt: KeyboardEvent) {
   if (evt.key === 'Enter') {
     // 阻止默认的换行行为
     evt.preventDefault();
     // 按下 Shift + Enter 键时换行
-    if (evt.shiftKey) {
+    if (evt.shiftKey && evt.target) {
       // 插入换行符
-      const textarea = evt.target;
-      const start = textarea.selectionStart;
-      const end = textarea.selectionEnd;
+      const textarea = evt.target as HTMLInputElement;
+      const start = textarea.selectionStart || 0;
+      const end = textarea.selectionEnd || 0;
       const text = textarea.value;
       textarea.value = text.substring(0, start) + '\n' + text.substring(end);
       terminalState.text = textarea.value;
@@ -121,7 +121,7 @@ function fnAutoCompleteKeydown(evt: any) {
         type: 'telnet',
         data: `${cmdStr}\r\n`,
       });
-      terminalState.text = ' ';
+      terminalState.text = '';
 
       // 退出登录
       if (['q', 'quit', 'exit'].includes(cmdStr)) {
@@ -296,11 +296,12 @@ defineExpose({
       style="width: 100%"
       :options="terminalState.history"
       :filter-option="fnAutoCompleteFilter"
-      @keydown="fnAutoCompleteKeydown"
+      :defaultActiveFirstOption="false"
     >
       <a-textarea
         :auto-size="{ minRows: 1, maxRows: 6 }"
         placeholder="Execute command. Shift+Enter to line feed, Enter to send"
+        @keypress="fnAutoCompleteKeydown"
       />
     </a-auto-complete>
   </div>