diff --git a/webui/src/components/ParameterForm.vue b/webui/src/components/ParameterForm.vue
index 9f64891..2787de5 100644
--- a/webui/src/components/ParameterForm.vue
+++ b/webui/src/components/ParameterForm.vue
@@ -421,7 +421,7 @@
 </template>
 
 <script setup lang="ts">
-import { ref, reactive, computed, onMounted, onUnmounted, watch } from 'vue'
+import { ref, reactive, computed, onMounted, onUnmounted, watch, toRaw } from 'vue'
 import type { AllParameters } from '@/types'
 import LogComponent from './Log.vue'
 import Animation from './Animation.vue'
@@ -638,8 +638,12 @@ const calculate = async () => {
       // 后台线程启动计算，实时日志通过 addLogFromBackend 推送
       // 结果通过 receiveResult 回调接收
       // 传递动画启用状态
+      // 使用 toRaw 解包响应式对象，确保 pywebview 能正确序列化参数
+      const rawParams = toRaw(params)
       const paramsWithAnimation = {
-        ...params,
+        parameter: toRaw(rawParams.parameter),
+        advance: toRaw(rawParams.advance),
+        optional: toRaw(rawParams.optional),
         animation_enabled: animationRef.value?.isEnabled() ?? false
       }
       await window.pywebview.api.calculate(paramsWithAnimation)