diff --git a/klp-mes/src/main/java/com/klp/mes/roll/domain/vo/MesRollGrindVo.java b/klp-mes/src/main/java/com/klp/mes/roll/domain/vo/MesRollGrindVo.java
index 2c10adbbb..59f348633 100644
--- a/klp-mes/src/main/java/com/klp/mes/roll/domain/vo/MesRollGrindVo.java
+++ b/klp-mes/src/main/java/com/klp/mes/roll/domain/vo/MesRollGrindVo.java
@@ -13,6 +13,7 @@ import java.util.Date;
 public class MesRollGrindVo {
 
     private Long grindId;
+    private Long lineId;
     private Long rollId;
     private String rollNo;
 
diff --git a/klp-mes/src/main/resources/mapper/roll/MesRollGrindMapper.xml b/klp-mes/src/main/resources/mapper/roll/MesRollGrindMapper.xml
index e8ca0e7a5..0859a07dd 100644
--- a/klp-mes/src/main/resources/mapper/roll/MesRollGrindMapper.xml
+++ b/klp-mes/src/main/resources/mapper/roll/MesRollGrindMapper.xml
@@ -3,7 +3,7 @@
 <mapper namespace="com.klp.mes.roll.mapper.MesRollGrindMapper">
 
     <select id="selectByRollId" resultType="com.klp.mes.roll.domain.vo.MesRollGrindVo">
-        SELECT grind_id, roll_id, roll_no, grind_time, team,
+        SELECT grind_id, line_id, roll_id, roll_no, grind_time, team,
                dia_before, dia_after, grind_amount, roll_shape,
                flaw_result,
                CASE WHEN hardness = '未倒角' THEN 0 ELSE CAST(hardness AS DECIMAL(10,1)) END AS hardness,
@@ -14,7 +14,7 @@
     </select>
 
     <select id="selectList" resultType="com.klp.mes.roll.domain.vo.MesRollGrindVo">
-        SELECT g.grind_id, g.roll_id, g.roll_no, g.grind_time, g.team,
+        SELECT g.grind_id, g.line_id, g.roll_id, g.roll_no, g.grind_time, g.team,
                g.dia_before, g.dia_after, g.grind_amount, g.roll_shape,
                g.flaw_result,
                CASE WHEN g.hardness = '未倒角' THEN 0 ELSE CAST(g.hardness AS DECIMAL(10,1)) END AS hardness,
diff --git a/klp-ui/src/views/mes/roll/report/index.vue b/klp-ui/src/views/mes/roll/report/index.vue
index 88da87b0c..6b6999cfc 100644
--- a/klp-ui/src/views/mes/roll/report/index.vue
+++ b/klp-ui/src/views/mes/roll/report/index.vue
@@ -56,7 +56,12 @@
       <el-col :span="14">
         <div class="chart-card">
           <div class="chart-header">
-            <span class="chart-title"><i class="el-icon-data-line" /> 每日磨削趋势</span>
+            <span class="chart-title"><i class="el-icon-data-line" /> {{ trendChartTitle }}</span>
+            <el-radio-group v-model="trendDimension" size="mini" @change="onTrendDimensionChange" style="margin-left:12px">
+              <el-radio-button label="day">按天</el-radio-button>
+              <el-radio-button label="week">按周</el-radio-button>
+              <el-radio-button label="month">按月</el-radio-button>
+            </el-radio-group>
           </div>
           <div ref="trendChartRef" class="chart-container" style="height:340px"></div>
           <div v-if="!dailyTrend.length" class="chart-empty">暂无数据</div>
@@ -131,6 +136,38 @@
       <el-empty v-else description="暂无磨削记录" />
     </div>
 
+    <!-- 月度产线汇总二维表 -->
+    <div class="table-card mt16">
+      <div class="card-header">
+        <span class="card-title"><i class="el-icon-s-data" /> 月度产线汇总</span>
+        <span class="card-subtitle" v-if="monthlyPivot.length">{{ monthlyPivotMonths.length }} 个月 · {{ monthlyPivot.length }} 条产线</span>
+        <el-button size="mini" type="primary" plain icon="el-icon-download" style="margin-left:8px" @click="exportMonthlyPivot" :disabled="!monthlyPivot.length">导出</el-button>
+      </div>
+      <div style="overflow-x:auto" v-if="monthlyPivot.length">
+        <el-table :data="monthlyPivot" size="small" border stripe style="min-width:100%"
+          :header-cell-style="{ textAlign: 'center', fontWeight: 600 }">
+          <el-table-column label="产线" prop="lineName" fixed="left" width="140" align="center" />
+          <el-table-column v-for="m in monthlyPivotMonths" :key="m" :label="m" align="center">
+            <el-table-column label="磨削次数" align="center" min-width="80">
+              <template slot-scope="{row}">{{ row[m + '_count'] || 0 }}</template>
+            </el-table-column>
+            <el-table-column label="磨削量(mm)" align="right" min-width="110">
+              <template slot-scope="{row}">{{ (row[m + '_amount'] || 0).toFixed(2) }}</template>
+            </el-table-column>
+          </el-table-column>
+          <el-table-column label="合计" align="center">
+            <el-table-column label="磨削次数" align="center" min-width="80">
+              <template slot-scope="{row}">{{ row.totalCount }}</template>
+            </el-table-column>
+            <el-table-column label="磨削量(mm)" align="right" min-width="110">
+              <template slot-scope="{row}">{{ row.totalAmount.toFixed(2) }}</template>
+            </el-table-column>
+          </el-table-column>
+        </el-table>
+      </div>
+      <el-empty v-else description="暂无磨削记录" />
+    </div>
+
   </div>
 </template>
 
@@ -139,12 +176,19 @@ import * as echarts from 'echarts'
 import * as XLSX from 'xlsx'
 import { getRollStats, listRollInfo } from '@/api/mes/roll/rollInfo'
 import { listRollGrindAll } from '@/api/mes/roll/rollGrind'
+import { mapGetters } from 'vuex'
 import rollLineMixin from '../rollLineMixin'
 
 export default {
   name: 'RollReport',
   mixins: [rollLineMixin],
   dicts: ['mes_roll_operator'],
+  computed: {
+    ...mapGetters(['productionLines']),
+    trendChartTitle() {
+      return { day: '每日磨削趋势', week: '每周磨削趋势', month: '每月磨削趋势' }[this.trendDimension] || '磨削趋势'
+    }
+  },
   data() {
     const now = new Date()
     const sevenDaysAgo = new Date(now.getTime() - 7 * 24 * 60 * 60 * 1000)
@@ -161,7 +205,10 @@ export default {
       trendChart: null,
       pieChart: null,
       _beginTime: fmt(sevenDaysAgo),
-      _endTime: fmt(now)
+      _endTime: fmt(now),
+      monthlyPivot: [],
+      monthlyPivotMonths: [],
+      trendDimension: 'day'
     }
   },
   watch: {
@@ -211,10 +258,20 @@ export default {
         const allRecords = grindRes.data || []
 
         // 4. 汇总计算
+        this.autoDetectTrendDimension()
         this.computeSummary(allRecords, rollMap)
-        this.computeDailyTrend(allRecords)
+        this.computeTrendData(allRecords)
         this.computeRollTypeDist(allRecords, rollMap)
         this.computeOperatorStats(allRecords, rollMap)
+
+        // 5. 月度产线汇总（跨全部产线，不受当前 lineId 限制）
+        await this.$store.dispatch('productionLine/getProductionLines')
+        const allParams = {}
+        if (this._beginTime) allParams.beginTime = this._beginTime
+        if (this._endTime) allParams.endTime = this._endTime + ' 23:59:59'
+        const allGrindRes = await listRollGrindAll(allParams)
+        this.computeMonthlyPivot(allGrindRes.data || [])
+
         this.updateCharts()
       } catch (e) {
         console.error('加载报表数据失败', e)
@@ -249,6 +306,56 @@ export default {
       })
       this.dailyTrend = Object.values(dateMap).sort((a, b) => a.grindDate.localeCompare(b.grindDate))
     },
+    computeWeeklyTrend(records) {
+      const weekMap = {}
+      const pad = n => String(n).padStart(2, '0')
+      records.forEach(r => {
+        if (!r.grindTime) return
+        const d = new Date(r.grindTime)
+        const dayOfWeek = d.getDay() || 7
+        const monday = new Date(d)
+        monday.setDate(d.getDate() - dayOfWeek + 1)
+        const sunday = new Date(monday)
+        sunday.setDate(monday.getDate() + 6)
+        const key = `${monday.getFullYear()}-${pad(monday.getMonth() + 1)}-${pad(monday.getDate())}`
+        const label = `${pad(monday.getMonth() + 1)}-${pad(monday.getDate())}~${pad(sunday.getMonth() + 1)}-${pad(sunday.getDate())}`
+        if (!weekMap[key]) weekMap[key] = { grindDate: label, grindCount: 0, totalGrindAmount: 0, _sort: key }
+        weekMap[key].grindCount++
+        weekMap[key].totalGrindAmount += Number(r.grindAmount || 0)
+      })
+      this.dailyTrend = Object.values(weekMap).sort((a, b) => a._sort.localeCompare(b._sort))
+    },
+    computeMonthlyTrend(records) {
+      const monthMap = {}
+      records.forEach(r => {
+        if (!r.grindTime) return
+        const m = r.grindTime.substring(0, 7)
+        if (!monthMap[m]) monthMap[m] = { grindDate: m, grindCount: 0, totalGrindAmount: 0 }
+        monthMap[m].grindCount++
+        monthMap[m].totalGrindAmount += Number(r.grindAmount || 0)
+      })
+      this.dailyTrend = Object.values(monthMap).sort((a, b) => a.grindDate.localeCompare(b.grindDate))
+    },
+    computeTrendData(records) {
+      this._cachedRecords = records
+      if (this.trendDimension === 'week') this.computeWeeklyTrend(records)
+      else if (this.trendDimension === 'month') this.computeMonthlyTrend(records)
+      else this.computeDailyTrend(records)
+    },
+    autoDetectTrendDimension() {
+      const [b, e] = this.dateRange
+      if (!b || !e) return
+      const days = (new Date(e) - new Date(b)) / (24 * 60 * 60 * 1000)
+      if (days <= 31) this.trendDimension = 'day'
+      else if (days <= 90) this.trendDimension = 'week'
+      else this.trendDimension = 'month'
+    },
+    onTrendDimensionChange() {
+      if (this._cachedRecords) {
+        this.computeTrendData(this._cachedRecords)
+        this.updateTrendChart()
+      }
+    },
     computeRollTypeDist(records, rollMap) {
       const typeMap = {}
       records.forEach(r => {
@@ -420,6 +527,78 @@ export default {
       link.click()
       document.body.removeChild(link)
       URL.revokeObjectURL(url)
+    },
+    computeMonthlyPivot(records) {
+      const lineMonthMap = {}
+      const monthSet = new Set()
+      records.forEach(r => {
+        if (!r.grindTime) return
+        const month = r.grindTime.substring(0, 7)
+        const lid = Number(r.lineId) || 0
+        if (!lineMonthMap[lid]) {
+          const line = this.productionLines.find(l => Number(l.lineId) === lid)
+          lineMonthMap[lid] = { lineId: lid, lineName: line ? line.lineName : (r.lineName || '未知产线'), months: {} }
+        }
+        if (!lineMonthMap[lid].months[month]) {
+          lineMonthMap[lid].months[month] = { grindCount: 0, totalGrindAmount: 0 }
+        }
+        lineMonthMap[lid].months[month].grindCount++
+        lineMonthMap[lid].months[month].totalGrindAmount += Number(r.grindAmount || 0)
+        monthSet.add(month)
+      })
+      const months = [...monthSet].sort()
+      const rows = this.productionLines.map(line => {
+        const ld = lineMonthMap[line.lineId]
+        const row = { lineId: line.lineId, lineName: line.lineName, totalCount: 0, totalAmount: 0 }
+        months.forEach(m => {
+          if (ld && ld.months[m]) {
+            row[m + '_count'] = ld.months[m].grindCount
+            row[m + '_amount'] = Number(ld.months[m].totalGrindAmount.toFixed(2))
+            row.totalCount += ld.months[m].grindCount
+            row.totalAmount += ld.months[m].totalGrindAmount
+          } else {
+            row[m + '_count'] = 0
+            row[m + '_amount'] = 0
+          }
+        })
+        row.totalAmount = Number(row.totalAmount.toFixed(2))
+        return row
+      })
+      this.monthlyPivotMonths = months
+      this.monthlyPivot = rows
+    },
+    exportMonthlyPivot() {
+      const months = this.monthlyPivotMonths
+      const header1 = ['产线']
+      const header2 = ['']
+      months.forEach(m => { header1.push(m, ''); header2.push('磨削次数', '磨削量(mm)') })
+      header1.push('合计', '')
+      header2.push('磨削次数', '磨削量(mm)')
+      const rows = [header1, header2]
+      this.monthlyPivot.forEach(row => {
+        const r = [row.lineName]
+        months.forEach(m => { r.push(row[m + '_count'] || 0, (row[m + '_amount'] || 0).toFixed(2)) })
+        r.push(row.totalCount, row.totalAmount.toFixed(2))
+        rows.push(r)
+      })
+      const ws = XLSX.utils.aoa_to_sheet(rows)
+      // merge header row 1 for month groups
+      ws['!merges'] = []
+      let col = 1
+      months.forEach(() => { ws['!merges'].push({ s: { r: 0, c: col }, e: { r: 0, c: col + 1 } }); col += 2 })
+      ws['!merges'].push({ s: { r: 0, c: col }, e: { r: 0, c: col + 1 } })
+      const wb = XLSX.utils.book_new()
+      XLSX.utils.book_append_sheet(wb, ws, '月度产线汇总')
+      const buf = XLSX.write(wb, { bookType: 'xlsx', type: 'array' })
+      const blob = new Blob([buf], { type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' })
+      const url = URL.createObjectURL(blob)
+      const link = document.createElement('a')
+      link.href = url
+      link.download = `月度产线汇总_${this._beginTime || ''}_${this._endTime ? this._endTime.substring(0, 10) : ''}.xlsx`
+      document.body.appendChild(link)
+      link.click()
+      document.body.removeChild(link)
+      URL.revokeObjectURL(url)
     }
   }
 }
@@ -431,6 +610,7 @@ export default {
   min-height: 100%;
 }
 .mb16 { margin-bottom: 16px; }
+.mt16 { margin-top: 16px; }
 
 /* 筛选栏 */
 .filter-panel {