diff --git a/src/views/contract/launch/components/ContractPartyPlaceholderModal.vue b/src/views/contract/launch/components/ContractPartyPlaceholderModal.vue
index b1302bc..2c42d45 100644
--- a/src/views/contract/launch/components/ContractPartyPlaceholderModal.vue
+++ b/src/views/contract/launch/components/ContractPartyPlaceholderModal.vue
@@ -440,11 +440,11 @@
                 />
               </a-form-item>
 
-              <a-form-item class="tight-item" :label="`金额说明${detailState.valuationMode === '0' ? ' *' : ''}`">
+              <a-form-item class="tight-item" label="金额说明" :required="['0','3'].includes(detailState.valuationMode)">
                 <a-textarea
                   v-model:value="detailState.amountExplain"
                   :rows="2"
-                  placeholder='计价方式为"无金额"时必填，说明金额相关情况'
+                  placeholder='计价方式为"无金额"或"无法预估总价"时必填，说明金额相关情况'
                 />
               </a-form-item>
 
@@ -2049,9 +2049,10 @@ function validateState() {
       detailState.value.estimatedAmount === "")
   )
     return "请填写预估金额";
-  // 无金额时金额说明必填
+  // 无金额或无法预估总价时金额说明必填
   if (
-    detailState.value.valuationMode === "0" &&
+    (detailState.value.valuationMode === "0" ||
+      detailState.value.valuationMode === "3") &&
     !detailState.value.amountExplain?.trim()
   )
     return "请填写金额说明";