diff --git a/src/views/modules/sampleTracking/projectProofTracking.vue b/src/views/modules/sampleTracking/projectProofTracking.vue
index d47e177..04b7894 100644
--- a/src/views/modules/sampleTracking/projectProofTracking.vue
+++ b/src/views/modules/sampleTracking/projectProofTracking.vue
@@ -1076,6 +1076,18 @@
                 type="date"
                 value-format="yyyy-MM-dd"
                 placeholder="选择日期"
+                style="width: 100%"
+                @change="handleProofDialogRequiredDeliveryDateChange">
+              </el-date-picker>
+            </el-form-item>
+          </el-col>
+          <el-col :span="6">
+            <el-form-item label="Baseline">
+              <el-date-picker
+                v-model="proofDialogData.baseline"
+                type="date"
+                value-format="yyyy-MM-dd"
+                placeholder="选择日期"
                 style="width: 100%">
               </el-date-picker>
             </el-form-item>
@@ -1091,14 +1103,14 @@
               </el-date-picker>
             </el-form-item>
           </el-col>
+        </el-row>
+        <el-row :gutter="16">
           <el-col :span="6">
             <el-form-item label="Importance">
               <el-checkbox v-model="proofDialogData.importance" true-label="Y" false-label="N"></el-checkbox>
             </el-form-item>
           </el-col>
-        </el-row>
-        <el-row :gutter="16">
-          <el-col :span="24">
+          <el-col :span="18">
             <el-form-item label="备注">
               <el-input v-model="proofDialogData.remark" style="width: 100%" ></el-input>
             </el-form-item>
@@ -4073,6 +4085,7 @@ export default {
         proofingNumber: '',
         planStartDate: '',
         requiredDeliveryDate: '',
+        baseline: '',
         actualityDeliveryDate: '',
         pmInqueryTime: '',
         importance: 'N',
@@ -4636,7 +4649,7 @@ export default {
     handleOneKeyProofingNoChange (proofingNo) {
       const selectedNo = this.isBlankValue(proofingNo) ? '' : String(proofingNo).trim()
       if (this.oneKeyDialogMode !== 'create') {
-        // 修改模式下预计完成日期、打样开始日期以数据库已存值为准，不跟随打样单号自动回填/清空。
+        // 修改模式：库里已有日期保留；为空时才跟随打样单号回填，避免空日期一直缺值。
         if (!selectedNo) {
           this.oneKeyForm.proofingNo = ''
           return
@@ -4644,6 +4657,7 @@ export default {
         const matchedInEdit = this.oneKeyProofingApplyOptions.find(item => item && item.applyNo === selectedNo)
         if (matchedInEdit) {
           this.oneKeyForm.proofingNo = matchedInEdit.applyNo
+          this.fillEmptyOneKeyProofingDatesFromApply(matchedInEdit)
         }
         return
       }
@@ -4662,6 +4676,23 @@ export default {
       this.oneKeyForm.planStartDate = matched.createTime || ''
       this.syncOneKeyBaselineByRequiredDeliveryDate(this.oneKeyForm.requiredDeliveryDate, false)
     },
+    fillEmptyOneKeyProofingDatesFromApply (matched) {
+      if (!matched) {
+        return
+      }
+      let filledRequiredDate = false
+      if (this.isBlankValue(this.oneKeyForm.requiredDeliveryDate)) {
+        this.oneKeyForm.requiredDeliveryDate = matched.expectedFinishDate || ''
+        filledRequiredDate = true
+      }
+      if (this.isBlankValue(this.oneKeyForm.planStartDate)) {
+        this.oneKeyForm.planStartDate = matched.createTime || ''
+      }
+      // 仅在本次补了预计完成日期时尝试带出 baseline，避免覆盖修改态已有 baseline。
+      if (filledRequiredDate) {
+        this.syncOneKeyBaselineByRequiredDeliveryDate(this.oneKeyForm.requiredDeliveryDate, false)
+      }
+    },
     handleOneKeyRequiredDeliveryDateChange (dateVal) {
       this.syncOneKeyBaselineByRequiredDeliveryDate(dateVal, false)
     },
@@ -4745,6 +4776,21 @@ export default {
       this.proofDialogData.requiredDeliveryDate = matched.expectedFinishDate || ''
       // 打样开始日期默认取工程实验单创建日期；清空打样单时同步清空，避免残留旧单日期。
       this.proofDialogData.planStartDate = matched.createTime || ''
+      this.syncProofDialogBaselineByRequiredDeliveryDate(this.proofDialogData.requiredDeliveryDate, false)
+    },
+    handleProofDialogRequiredDeliveryDateChange (dateVal) {
+      this.syncProofDialogBaselineByRequiredDeliveryDate(dateVal, false)
+    },
+    syncProofDialogBaselineByRequiredDeliveryDate (requiredDeliveryDate, forceSync) {
+      const normalizedRequiredDate = this.formatDate(requiredDeliveryDate)
+      if (!normalizedRequiredDate) {
+        return
+      }
+      const normalizedBaseline = this.formatDate(this.proofDialogData.baseline)
+      if (forceSync || !normalizedBaseline) {
+        // 新增打样时 baseline 首次默认跟随预计完成日期，后续允许用户改写。
+        this.proofDialogData.baseline = normalizedRequiredDate
+      }
     },
     loadProofDialogApplyOptions (projectNo) {
       const normalizedProjectNo = this.normalizeProjectNo(projectNo)
@@ -5523,6 +5569,7 @@ export default {
         proofingNumber: '',
         planStartDate: '',
         requiredDeliveryDate: '',
+        baseline: '',
         actualityDeliveryDate: '',
         pmInqueryTime: '',
         importance: 'N',
@@ -5747,6 +5794,15 @@ export default {
       }
       return true
     },
+    resolveProofDialogBaseline () {
+      const baseline = this.formatDate(this.proofDialogData.baseline)
+      if (baseline) {
+        return baseline
+      }
+      // 用户未填 baseline 时，按预计完成日期初始化，与一键创建口径一致。
+      const requiredDeliveryDate = this.formatDate(this.proofDialogData.requiredDeliveryDate)
+      return requiredDeliveryDate || null
+    },
     buildProofPayload () {
       return {
         site: this.proofDialogData.site,
@@ -5762,6 +5818,7 @@ export default {
         proofingNumber: Number(this.proofDialogData.proofingNumber),
         planStartDate: this.proofDialogData.planStartDate,
         requiredDeliveryDate: this.proofDialogData.requiredDeliveryDate,
+        baseline: this.resolveProofDialogBaseline(),
         actualityDeliveryDate: this.proofDialogData.actualityDeliveryDate || null,
         pmInqueryTime: this.isBlankValue(this.proofDialogData.pmInqueryTime) ? null : this.proofDialogData.pmInqueryTime,
         importance: this.normalizeImportanceValue(this.proofDialogData.importance),