diff --git a/inventory-backend/app/api/v1/inbound/base.py b/inventory-backend/app/api/v1/inbound/base.py
index 754e7d7..c4462bb 100644
--- a/inventory-backend/app/api/v1/inbound/base.py
+++ b/inventory-backend/app/api/v1/inbound/base.py
@@ -455,3 +455,21 @@ def batch_set_inspection():
         db.session.rollback()
         current_app.logger.error(f"批量设置强制质检失败: {str(e)}")
         return jsonify({"code": 500, "msg": f"批量设置强制质检失败: {str(e)}"}), 500
+
+
+# ==============================================================================
+# 2.7 智能分组求最大连号 API (GET /api/v1/inbound/base/spec-latest)
+# ==============================================================================
+@inbound_base_bp.route('/spec-latest', methods=['GET'])
+@permission_required('material_list')
+def get_spec_latest():
+    """
+    获取所有规格型号的最大连号，按智能分组返回
+    返回格式: [{"group": "S", "latest": "S0115/S0115"}, {"group": "Opt4xxx", "latest": "Opt4018/Opt4018"}, ...]
+    """
+    try:
+        data = MaterialBaseService.get_latest_specs()
+        return jsonify({"code": 200, "msg": "success", "data": data})
+    except Exception as e:
+        traceback.print_exc()
+        return jsonify({"code": 500, "msg": str(e)}), 500
diff --git a/inventory-backend/app/services/inbound/base_service.py b/inventory-backend/app/services/inbound/base_service.py
index fa67298..0c0625d 100644
--- a/inventory-backend/app/services/inbound/base_service.py
+++ b/inventory-backend/app/services/inbound/base_service.py
@@ -954,4 +954,71 @@ class MaterialBaseService:
 
         except Exception as e:
             traceback.print_exc()
-            raise e
\ No newline at end of file
+            raise e
+
+    @staticmethod
+    def get_latest_specs():
+        """
+        获取所有规格型号的最大连号，按智能分组返回
+        返回格式: [{"group": "S", "latest": "S0115/S0115"}, {"group": "Opt4xxx", "latest": "Opt4018/Opt4018"}, ...]
+        """
+        import re
+
+        # 1. 查询所有不为空的规格型号
+        specs = MaterialBase.query.filter(
+            MaterialBase.spec_model.isnot(None),
+            MaterialBase.spec_model != ''
+        ).all()
+
+        # 2. 数据结构：{分组名: (原始规格, 数字部分)}
+        groups = {}
+
+        def parse_spec(spec_full):
+            """
+            解析规格型号
+            返回: (prefix, num, group_name, original_spec)
+            """
+            # 取斜杠前的部分作为基准
+            base_spec = spec_full.split('/')[0]
+
+            # 使用正则解析：字母前缀 + 数字
+            match = re.match(r'^([A-Za-z]+)(\d+)$', base_spec)
+            if not match:
+                return (base_spec, 0, base_spec, spec_full)
+
+            prefix, num_str = match.groups()
+            num = int(num_str)
+
+            # 智能分组逻辑
+            if prefix == 'Opt':
+                # Opt 按千位段分组
+                thousand = num // 1000
+                group = f"Opt{thousand}xxx"
+            else:
+                # 常规前缀按原值分组
+                group = prefix
+
+            return (prefix, num, group, spec_full)
+
+        # 3. 遍历并分组
+        for material in specs:
+            spec = material.spec_model
+            if not spec:
+                continue
+
+            prefix, num, group, original_spec = parse_spec(spec)
+
+            if group not in groups:
+                groups[group] = (original_spec, num)
+            else:
+                _, existing_num = groups[group]
+                if num > existing_num:
+                    groups[group] = (original_spec, num)
+
+        # 4. 构建返回结果，按分组名排序
+        result = [
+            {"group": group, "latest": spec}
+            for group, (spec, _) in sorted(groups.items())
+        ]
+
+        return result
\ No newline at end of file
diff --git a/inventory-web/src/api/material_base.ts b/inventory-web/src/api/material_base.ts
index c690f25..dd47e4e 100644
--- a/inventory-web/src/api/material_base.ts
+++ b/inventory-web/src/api/material_base.ts
@@ -69,4 +69,12 @@ export function batchSetInspection(data: { ids: number[], isInspectionRequired:
         method: 'post',
         data
     })
+}
+
+// 7. 获取智能分组规格最大连号
+export function getLatestSpecs() {
+    return request({
+        url: '/inbound/base/spec-latest',
+        method: 'get'
+    })
 }
\ No newline at end of file
diff --git a/inventory-web/src/components/SpecHelper/index.vue b/inventory-web/src/components/SpecHelper/index.vue
new file mode 100644
index 0000000..038c94c
--- /dev/null
+++ b/inventory-web/src/components/SpecHelper/index.vue
@@ -0,0 +1,200 @@
+<template>
+  <div class="spec-helper" :class="{ expanded }">
+    <!-- 触发按钮 -->
+    <div class="trigger-btn" @click="toggle">
+      <span class="arrow">{{ expanded ? '>' : '<' }}</span>
+    </div>
+
+    <!-- 面板内容 -->
+    <div class="panel">
+      <div class="panel-header">
+        <span class="title">规格连号助手</span>
+        <el-input
+          v-model="filterText"
+          placeholder="搜索分组或规格..."
+          clearable
+          size="small"
+          class="search-input"
+        >
+          <template #prefix>
+            <el-icon><Search /></el-icon>
+          </template>
+        </el-input>
+      </div>
+
+      <el-scrollbar class="data-list">
+        <div
+          v-for="item in filteredData"
+          :key="item.group"
+          class="data-item"
+        >
+          <span class="group-tag">{{ item.group }}</span>
+          <span class="latest-spec">{{ item.latest }}</span>
+        </div>
+        <el-empty v-if="filteredData.length === 0" description="暂无数据" :image-size="60" />
+      </el-scrollbar>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, computed, onMounted } from 'vue'
+import { Search } from '@element-plus/icons-vue'
+import { getLatestSpecs } from '@/api/material_base'
+import { ElMessage } from 'element-plus'
+
+interface SpecItem {
+  group: string
+  latest: string
+}
+
+const expanded = ref(false)
+const filterText = ref('')
+const specData = ref<SpecItem[]([])
+
+const toggle = () => {
+  expanded.value = !expanded.value
+  if (expanded.value && specData.value.length === 0) {
+    fetchData()
+  }
+}
+
+const fetchData = async () => {
+  try {
+    const res = await getLatestSpecs()
+    if (res.data.code === 200) {
+      specData.value = res.data.data || []
+    } else {
+      ElMessage.error(res.data.msg || '获取规格数据失败')
+    }
+  } catch (error) {
+    console.error('获取规格数据失败:', error)
+    ElMessage.error('获取规格数据失败')
+  }
+}
+
+const filteredData = computed(() => {
+  if (!filterText.value) {
+    return specData.value
+  }
+  const keyword = filterText.value.toLowerCase()
+  return specData.value.filter(
+    item =>
+      item.group.toLowerCase().includes(keyword) ||
+      item.latest.toLowerCase().includes(keyword)
+  )
+})
+
+onMounted(() => {
+  // 默认不加载，展开时再加载
+})
+</script>
+
+<style scoped>
+.spec-helper {
+  position: fixed;
+  right: 0;
+  top: 50%;
+  transform: translateY(-50%);
+  z-index: 9999;
+  display: flex;
+  align-items: center;
+  transition: transform 0.3s ease;
+}
+
+.spec-helper:not(.expanded) {
+  transform: translateY(-50%) translateX(calc(100% - 24px));
+}
+
+.trigger-btn {
+  width: 24px;
+  height: 60px;
+  background: #409eff;
+  color: white;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  cursor: pointer;
+  border-radius: 4px 0 0 4px;
+  flex-shrink: 0;
+}
+
+.trigger-btn:hover {
+  background: #66b1ff;
+}
+
+.arrow {
+  font-size: 14px;
+  font-weight: bold;
+}
+
+.panel {
+  width: 280px;
+  height: 400px;
+  background: white;
+  border-radius: 4px 0 0 4px;
+  box-shadow: -2px 0 8px rgba(0, 0, 0, 0.15);
+  display: flex;
+  flex-direction: column;
+  overflow: hidden;
+}
+
+.panel-header {
+  padding: 12px;
+  border-bottom: 1px solid #ebeef5;
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+}
+
+.title {
+  font-size: 14px;
+  font-weight: 600;
+  color: #303133;
+}
+
+.search-input {
+  width: 100%;
+}
+
+.data-list {
+  flex: 1;
+  overflow-y: auto;
+}
+
+.data-item {
+  padding: 8px 12px;
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  border-bottom: 1px solid #f5f7fa;
+  cursor: default;
+}
+
+.data-item:hover {
+  background: #f5f7fa;
+}
+
+.group-tag {
+  font-size: 12px;
+  font-weight: 500;
+  color: #409eff;
+  background: #ecf5ff;
+  padding: 2px 6px;
+  border-radius: 3px;
+  max-width: 80px;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.latest-spec {
+  font-size: 13px;
+  color: #303133;
+  font-family: monospace;
+  max-width: 140px;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+</style>
\ No newline at end of file
diff --git a/inventory-web/src/layout/index.vue b/inventory-web/src/layout/index.vue
index a5d1950..af8e789 100644
--- a/inventory-web/src/layout/index.vue
+++ b/inventory-web/src/layout/index.vue
@@ -5,12 +5,16 @@
     <div class="main-container">
       <AppMain />
     </div>
+
+    <!-- 全局规格连号助手 -->
+    <SpecHelper />
   </div>
 </template>
 
 <script setup lang="ts">
 import Sidebar from './components/Sidebar/index.vue'
 import AppMain from './components/AppMain.vue'
+import SpecHelper from '@/components/SpecHelper/index.vue'
 </script>
 
 <style scoped>