diff --git a/src/views/modules/sampleTracking/projectProofTracking.vue b/src/views/modules/sampleTracking/projectProofTracking.vue
index 95c45c0..f106b09 100644
--- a/src/views/modules/sampleTracking/projectProofTracking.vue
+++ b/src/views/modules/sampleTracking/projectProofTracking.vue
@@ -1048,7 +1048,7 @@
             </el-form-item>
           </el-col>
           <el-col :span="6">
-            <el-form-item label="项目分类" required>
+            <el-form-item label="项目分类">
               <el-select v-model="proofDialogData.cProjectTypeDb" placeholder="请选择" clearable style="width: 100%">
                 <el-option
                   v-for="item in cProjectTypeDbList"
@@ -1075,7 +1075,7 @@
 
         <el-row :gutter="16">
           <el-col :span="6">
-            <el-form-item label="打样单号" required>
+            <el-form-item label="打样单号">
               <el-select
                 v-model="proofDialogData.proofingNo"
                 placeholder="请选择试验单号"
@@ -1095,7 +1095,7 @@
             </el-form-item>
           </el-col>
           <el-col :span="6">
-            <el-form-item label="打样开始日期" required>
+            <el-form-item label="打样开始日期">
               <el-date-picker
                 v-model="proofDialogData.planStartDate"
                 type="date"
@@ -1128,7 +1128,7 @@
 
         <el-row :gutter="16">
           <el-col :span="6">
-            <el-form-item label="数量" required>
+            <el-form-item label="数量">
               <el-input v-model="proofDialogData.proofingNumber" style="width: 100%" />
             </el-form-item>
             <!-- 提示放在 form-item 外：全局 medium 内容区高度固定 24px，写在内部会溢出并挡住下一行 Importance。 -->
@@ -5972,9 +5972,6 @@ export default {
         createBy: this.$store.state.user.name,
         updateBy: this.$store.state.user.name
       })
-      if (this.isBlankValue(projectCategory)) {
-        this.$message.warning('未获取到项目分类，请手动选择')
-      }
       this.proofDialogVisible = true
       this.loadProofDialogApplyOptions(this.proofDialogData.projectNo)
     },
@@ -6152,36 +6149,23 @@ export default {
       }).catch(() => {})
     },
     validateProofDialogData () {
+      // 新增打样挂在已选物料上，缺少项目或物料主键时无法落跟踪记录。
       if (!this.proofDialogData.projectId || !this.proofDialogData.projectPartId) {
         this.$message.warning('项目或项目料号信息不完整')
         return false
       }
-      if (!this.proofDialogData.cProjectTypeDb) {
-        this.$message.warning('项目分类不能为空')
-        return false
-      }
-      if (!this.proofDialogData.projectPhase) {
+      if (this.isBlankValue(this.proofDialogData.projectPhase)) {
         this.$message.warning('项目阶段不能为空')
         return false
       }
-      if (!this.proofDialogData.proofingNo) {
-        this.$message.warning('打样单号不能为空')
-        return false
-      }
-      if (!this.proofDialogData.proofingNumber) {
-        this.$message.warning('数量不能为空')
-        return false
-      }
-      if (!/^[1-9]\d*$/.test(String(this.proofDialogData.proofingNumber))) {
+      // 数量允许留空；一旦填写仍必须是正整数，避免把 0、小数或文本写入打样数量。
+      const proofingNumber = this.proofDialogData.proofingNumber
+      if (!this.isBlankValue(proofingNumber) && !/^[1-9]\d*$/.test(String(proofingNumber).trim())) {
         this.$alert('数量必需是大于等于0的正整数', '提示', {
           confirmButtonText: '确定'
         })
         return false
       }
-      if (!this.proofDialogData.planStartDate) {
-        this.$message.warning('打样开始日期不能为空')
-        return false
-      }
       return true
     },
     resolveProofDialogBaseline () {
@@ -6202,17 +6186,17 @@ export default {
         testPartNo: this.proofDialogData.testPartNo,
         customerNo: this.proofDialogData.customerNo,
         buNo: this.proofDialogData.buNo,
-        projectCategory: this.proofDialogData.cProjectTypeDb,
+        projectCategory: this.isBlankValue(this.proofDialogData.cProjectTypeDb) ? null : this.proofDialogData.cProjectTypeDb,
         projectPhase: this.proofDialogData.projectPhase,
-        proofingNo: this.proofDialogData.proofingNo,
-        proofingNumber: Number(this.proofDialogData.proofingNumber),
-        planStartDate: this.proofDialogData.planStartDate,
+        proofingNo: this.isBlankValue(this.proofDialogData.proofingNo) ? null : String(this.proofDialogData.proofingNo).trim(),
+        proofingNumber: this.isBlankValue(this.proofDialogData.proofingNumber) ? null : Number(String(this.proofDialogData.proofingNumber).trim()),
+        planStartDate: this.isBlankValue(this.proofDialogData.planStartDate) ? null : this.proofDialogData.planStartDate,
         requiredDeliveryDate: this.isBlankValue(this.proofDialogData.requiredDeliveryDate) ? null : 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),
-        proofingStatus: this.proofDialogData.proofingStatus || '草稿',
+        proofingStatus: this.isBlankValue(this.proofDialogData.proofingStatus) ? null : this.proofDialogData.proofingStatus,
         remark: this.proofDialogData.remark,
         tracker: this.proofDialogData.projectOwner,
         engineer: this.proofDialogData.engineer,