diff --git a/src/views/wpm_bx/handover_form.vue b/src/views/wpm_bx/handover_form.vue
index d04f7670..301f4aaa 100644
--- a/src/views/wpm_bx/handover_form.vue
+++ b/src/views/wpm_bx/handover_form.vue
@@ -665,7 +665,16 @@ export default {
 			});
 		},
 		addMaterial(){
-			this.addShow = true;
+			let that = this;
+			that.addShow = true;
+			// 将已扫板段对应的批次预填入多选，避免手动添加把扫描数据顶掉
+			if(that.form.handoverb && that.form.handoverb.length > 0){
+				that.form.handoverb.forEach(item => {
+					if(item.wm && that.selectItems.indexOf(item.wm) === -1){
+						that.selectItems.push(item.wm);
+					}
+				});
+			}
 		},
 		delMaterial(index){
 			this.selectItems.splice(index,1);
@@ -715,6 +724,15 @@ export default {
 		},
 		 materialChange() {
 			let that = this;
+			// shangpaipingmo：先缓存已扫板段数据，重建后保留
+			let scannedMap = {};
+			if(that.route_code == 'shangpaipingmo'){
+				(that.form.handoverb || []).forEach(h => {
+					if(h.wm && h.handoverbw && h.handoverbw.length > 0){
+						scannedMap[h.wm] = h;
+					}
+				});
+			}
 			that.form.new_batch = that.route_code=='shangpaipingmo'?that.form.new_batch:"";
 			let totalCount = 0,data = [];
 			if(that.selectItems.length>0){
@@ -755,15 +773,31 @@ export default {
 				}
 				data.forEach((item,index)=>{
 					item.wm = item.id;
-					item.count = item.count_canhandover;
-					totalCount += Number(item.count_canhandover);
 					item.tracking = item.material_.tracking;
 					if(item.material_.process_name){
 						item.process = item.material_.process_name;
 					}
-					item.handoverbw = [];
-					that.getWprList(item.id,index);
+					let scanned = scannedMap[item.id];
+					if(scanned){
+						// 保留已扫板段的 handoverbw 和数量
+						item.handoverbw = scanned.handoverbw;
+						item.count = scanned.count;
+						totalCount += Number(scanned.count);
+					} else {
+						item.count = item.count_canhandover;
+						totalCount += Number(item.count_canhandover);
+						item.handoverbw = [];
+						that.getWprList(item.id,index);
+					}
 				})
+				// 同步 checkedStatus：全选状态由各批次 handoverbw 实际勾选情况决定
+				that.checkedStatus = data.map(item => {
+					let scanned = scannedMap[item.id];
+					if(scanned && scanned.handoverbw && scanned.handoverbw.length > 0){
+						return scanned.handoverbw.every(w => w.checked !== false);
+					}
+					return true;
+				});
 			}
 			that.totalCount = totalCount;
 			that.form.handoverb = data;
@@ -1049,16 +1083,22 @@ export default {
 									let obj1 = {};
 									obj1.wpr = res[0].id;
 									obj1.number = res[0].number;
+									obj1.checked = true;
 									that.form.handoverb[indexs].count+=1;
 									that.form.handoverb[indexs].handoverbw.push(obj1);
+									that.checkedStatus.push(true)
+									that.selectItems.push(res[0].id)
 								}
 							}else{
 								that.form.handoverb[indexs].handoverbw = [];
 								let obj1 = {};
 								obj1.wpr = res[0].id;
+								obj1.checked = true;
 								obj1.number = res[0].number;
 								that.form.handoverb[indexs].count=1;
 								that.form.handoverb[indexs].handoverbw.push(obj1);
+								that.checkedStatus.push(true)
+								that.selectItems.push(res[0].id)
 							}
 						}else{//handoverb里没有有这个物料批次
 							if(that.new_wm==''){
@@ -1082,9 +1122,12 @@ export default {
 										obj2.count = 1;
 										let obj3 = {};
 										obj3.wpr = res[0].id;
+										obj3.checked = true;
 										obj3.number = res[0].number;
 										obj2.handoverbw.push(obj3);
 										that.form.handoverb.push(obj2);
+										that.checkedStatus.push(true)
+										that.selectItems.push(res[0].id)
 									}	
 								})
 							}else{
@@ -1097,9 +1140,12 @@ export default {
 								obj2.count = 1;
 								let obj3 = {};
 								obj3.wpr = res[0].id;
+								obj3.checked = true;
 								obj3.number = res[0].number;
 								obj2.handoverbw.push(obj3);
 								that.form.handoverb.push(obj2);
+								that.checkedStatus.push(true)
+								that.selectItems.push(res[0].id)
 							}
 						}
 					}else{