diff --git a/app/departments/page.tsx b/app/departments/page.tsx
index ed38aff..2f5ee38 100644
--- a/app/departments/page.tsx
+++ b/app/departments/page.tsx
@@ -13,9 +13,10 @@ import { departmentApi, type Department, type PaginatedResponse, type Pagination
 import { useAppContext } from "@/lib/app-context"
 import { Pagination, usePagination } from "@/components/pagination"
 import { LoadingInline } from "@/components/loading"
+import { AxiosError } from "axios"
 
 export default function DepartmentsPage() {
-  const { Confirm } = useAppContext()
+  const { Confirm, Alert } = useAppContext()
   const [departments, setDepartments] = useState<Department[]>([])
   const [loading, setLoading] = useState(true)
   const [dialogOpen, setDialogOpen] = useState(false)
@@ -94,8 +95,13 @@ export default function DepartmentsPage() {
       try {
         await departmentApi.delete(id)
         fetchDepartments()
-      } catch (error) {
+      } catch (error: unknown) {
         console.error("删除部门失败:", error)
+        if (error instanceof AxiosError) {
+          Alert("删除失败", error.response?.data?.error || "删除部门失败，请重试")
+        } else {
+          Alert("删除失败", "删除部门失败，请重试")
+        }
       }
     }
   }
diff --git a/app/employees/page.tsx b/app/employees/page.tsx
index e22bbaa..85cd6d7 100644
--- a/app/employees/page.tsx
+++ b/app/employees/page.tsx
@@ -14,9 +14,10 @@ import { employeeApi, departmentApi, type Employee, type Department, type Pagina
 import { useAppContext } from "@/lib/app-context"
 import { Pagination, usePagination } from "@/components/pagination"
 import { LoadingInline } from "@/components/loading"
+import { AxiosError } from "axios"
 
 export default function EmployeesPage() {
-  const { Confirm } = useAppContext()
+  const { Confirm, Alert } = useAppContext()
   const [employees, setEmployees] = useState<Employee[]>([])
   const [departments, setDepartments] = useState<Department[]>([])
   const [managers, setManagers] = useState<Employee[]>([])
@@ -147,8 +148,13 @@ export default function EmployeesPage() {
       try {
         await employeeApi.delete(id)
         fetchEmployees()
-      } catch (error) {
+      } catch (error: unknown) {
         console.error("删除员工失败:", error)
+        if (error instanceof AxiosError) {
+          Alert("删除失败", error.response?.data?.error || "删除员工失败，请重试")
+        } else {
+          Alert("删除失败", "删除员工失败，请重试")
+        }
       }
     }
   }
diff --git a/app/evaluations/page.tsx b/app/evaluations/page.tsx
index 9a82e2e..bb1004d 100644
--- a/app/evaluations/page.tsx
+++ b/app/evaluations/page.tsx
@@ -54,6 +54,7 @@ import { Pagination, usePagination } from "@/components/pagination"
 import { LoadingInline } from "@/components/loading"
 import { toast } from "sonner"
 import { Tooltip, TooltipContent, TooltipTrigger } from "@/components/ui/tooltip"
+import { AxiosError } from "axios"
 
 export default function EvaluationsPage() {
   const { Alert, Confirm, getStatusBadge, isTouch } = useAppContext()
@@ -78,6 +79,12 @@ export default function EvaluationsPage() {
   const [statusFilter, setStatusFilter] = useState<string>("all")
   const [employeeFilter, setEmployeeFilter] = useState<string>("all")
 
+  // 周期筛选相关状态
+  const [periodFilter, setPeriodFilter] = useState<string>("")
+  const [yearFilter, setYearFilter] = useState<string>("")
+  const [monthFilter, setMonthFilter] = useState<string>("")
+  const [quarterFilter, setQuarterFilter] = useState<string>("")
+
   // 添加绩效视图Tab相关状态
   const [viewTab, setViewTab] = useState<"my" | "team">("my") // 默认显示我的绩效
 
@@ -142,6 +149,20 @@ export default function EvaluationsPage() {
         params.status = statusFilter
       }
 
+      // 周期筛选参数
+      if (periodFilter) {
+        params.period = periodFilter
+      }
+      if (yearFilter) {
+        params.year = yearFilter
+      }
+      if (monthFilter) {
+        params.month = monthFilter
+      }
+      if (quarterFilter) {
+        params.quarter = quarterFilter
+      }
+
       // 根据Tab和角色设置员工筛选
       if (viewTab === "my") {
         // 我的绩效：只显示自己的
@@ -177,7 +198,7 @@ export default function EvaluationsPage() {
     } finally {
       setLoading(false)
     }
-  }, [currentUser, currentPage, pageSize, statusFilter, employeeFilter, viewTab, isHR, isManager, refreshUnreadEvaluations])
+  }, [currentUser, currentPage, pageSize, statusFilter, employeeFilter, periodFilter, yearFilter, monthFilter, quarterFilter, viewTab, isHR, isManager, refreshUnreadEvaluations])
 
   // 获取模板列表
   const fetchTemplates = async () => {
@@ -401,6 +422,10 @@ export default function EvaluationsPage() {
     setViewTab(tab)
     setStatusFilter("all")
     setEmployeeFilter("all")
+    setPeriodFilter("")
+    setYearFilter("")
+    setMonthFilter("")
+    setQuarterFilter("")
     resetPagination()
   }
 
@@ -451,9 +476,13 @@ export default function EvaluationsPage() {
 
       // 成功提示
       Alert("创建成功", `已为 ${formData.employee_ids.length} 个员工创建考核`)
-    } catch (error) {
+    } catch (error: unknown) {
       console.error("创建评估失败:", error)
-      Alert("创建失败", "创建考核失败，请重试")
+      if (error instanceof AxiosError) {
+        Alert("创建失败", error.response?.data?.error || "创建考核失败，请重试")
+      } else {
+        Alert("创建失败", "创建考核失败，请重试")
+      }
     }
   }
 
@@ -1212,6 +1241,7 @@ export default function EvaluationsPage() {
               {loading && <LoadingInline />}
             </div>
             <div className="flex flex-wrap items-center gap-3">
+              {/* 状态筛选 */}
               <Select value={statusFilter} onValueChange={setStatusFilter}>
                 <SelectTrigger className="w-auto">
                   <SelectValue placeholder="状态筛选" />
@@ -1225,6 +1255,8 @@ export default function EvaluationsPage() {
                   <SelectItem value="completed">已完成</SelectItem>
                 </SelectContent>
               </Select>
+
+              {/* 员工筛选 */}
               {viewTab === "team" && (
                 <EmployeeCombobox
                   value={employeeFilter}
@@ -1233,11 +1265,107 @@ export default function EvaluationsPage() {
                   className="min-w-24 justify-between"
                 />
               )}
+
+              {/* 周期筛选 */}
+              <Select
+                value={periodFilter || "all"}
+                onValueChange={(value) => {
+                  setPeriodFilter(value === "all" ? "" : value)
+                  setMonthFilter("")
+                  setQuarterFilter("")
+                  resetPagination()
+                }}
+              >
+                <SelectTrigger className="w-auto">
+                  <SelectValue placeholder="周期筛选" />
+                </SelectTrigger>
+                <SelectContent>
+                  <SelectItem value="all">全部周期</SelectItem>
+                  <SelectItem value="monthly">月度</SelectItem>
+                  <SelectItem value="quarterly">季度</SelectItem>
+                  <SelectItem value="yearly">年度</SelectItem>
+                </SelectContent>
+              </Select>
+
+              {/* 年份筛选 */}
+              <Select
+                value={yearFilter || "all"}
+                onValueChange={(value) => {
+                  setYearFilter(value === "all" ? "" : value)
+                  resetPagination()
+                }}
+              >
+                <SelectTrigger className="w-auto">
+                  <SelectValue placeholder="年份筛选" />
+                </SelectTrigger>
+                <SelectContent>
+                  <SelectItem value="all">全部年份</SelectItem>
+                  {Array.from({ length: 10 }, (_, i) => {
+                    const year = new Date().getFullYear() - i
+                    return (
+                      <SelectItem key={year} value={year.toString()}>
+                        {year}年
+                      </SelectItem>
+                    )
+                  })}
+                </SelectContent>
+              </Select>
+
+              {/* 月份筛选 - 只在月度周期时显示 */}
+              {periodFilter === "monthly" && (
+                <Select
+                  value={monthFilter || "all"}
+                  onValueChange={(value) => {
+                    setMonthFilter(value === "all" ? "" : value)
+                    resetPagination()
+                  }}
+                >
+                  <SelectTrigger className="w-auto">
+                    <SelectValue placeholder="月份筛选" />
+                  </SelectTrigger>
+                  <SelectContent>
+                    <SelectItem value="all">全部月份</SelectItem>
+                    {[...Array(12)].map((_, i) => (
+                      <SelectItem key={i + 1} value={(i + 1).toString()}>
+                        {i + 1}月
+                      </SelectItem>
+                    ))}
+                  </SelectContent>
+                </Select>
+              )}
+
+              {/* 季度筛选 - 只在季度周期时显示 */}
+              {periodFilter === "quarterly" && (
+                <Select
+                  value={quarterFilter || "all"}
+                  onValueChange={(value) => {
+                    setQuarterFilter(value === "all" ? "" : value)
+                    resetPagination()
+                  }}
+                >
+                  <SelectTrigger className="w-auto">
+                    <SelectValue placeholder="季度筛选" />
+                  </SelectTrigger>
+                  <SelectContent>
+                    <SelectItem value="all">全部季度</SelectItem>
+                    <SelectItem value="1">第一季度</SelectItem>
+                    <SelectItem value="2">第二季度</SelectItem>
+                    <SelectItem value="3">第三季度</SelectItem>
+                    <SelectItem value="4">第四季度</SelectItem>
+                  </SelectContent>
+                </Select>
+              )}
+
+              {/* 重置筛选 */}
               <Button
                 variant="outline"
                 onClick={() => {
                   setStatusFilter("all")
                   setEmployeeFilter("all")
+                  setPeriodFilter("")
+                  setYearFilter("")
+                  setMonthFilter("")
+                  setQuarterFilter("")
                   resetPagination()
                 }}
               >
@@ -1313,7 +1441,15 @@ export default function EvaluationsPage() {
                     <TableCell>{evaluation.template?.name}</TableCell>
                     <TableCell>{getPeriodValue(evaluation)}</TableCell>
                     <TableCell>
-                      <div className="text-lg font-semibold">{formatScore(evaluation.total_score)}</div>
+                      <div className="text-lg font-semibold">
+                        {formatScore(
+                          evaluation.scores?.reduce(
+                            (acc, score) =>
+                              acc +
+                              (score.final_score ?? score.hr_score ?? score.manager_score ?? score.self_score ?? 0), 0
+                          )
+                        )}
+                      </div>
                     </TableCell>
                     <TableCell>{getStatusBadge(evaluation.status)}</TableCell>
                     <TableCell className="text-right">
diff --git a/lib/api.ts b/lib/api.ts
index 4ab7fc0..046ddaa 100644
--- a/lib/api.ts
+++ b/lib/api.ts
@@ -311,6 +311,12 @@ export interface PaginationParams {
 export interface EvaluationPaginationParams extends PaginationParams {
   status?: string
   employee_id?: string
+  department_id?: string
+  // 周期筛选参数
+  period?: string
+  year?: string
+  month?: string
+  quarter?: string
 }
 
 // 员工API
diff --git a/server/go.sum b/server/go.sum
index e021015..c7e3151 100644
--- a/server/go.sum
+++ b/server/go.sum
@@ -8,8 +8,6 @@ github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ3
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/dootask/tools/server/go v0.0.0-20250716160050-ecb1e6de2b73 h1:h77oVnQjMiuTTjnLCiJQrUUl9GfiTgK1hP9E2vzClQg=
-github.com/dootask/tools/server/go v0.0.0-20250716160050-ecb1e6de2b73/go.mod h1:QTdgJGF8hr4pPTl7200zQbYJ2K0ag7UX5l2Tlm6LhgU=
 github.com/dootask/tools/server/go v0.0.0-20250717040353-7e9cc89be08c h1:TaUYF5MtdSoBg0tzNEqq5Xf2XZzhyw2zZSPrBgmC/UA=
 github.com/dootask/tools/server/go v0.0.0-20250717040353-7e9cc89be08c/go.mod h1:QTdgJGF8hr4pPTl7200zQbYJ2K0ag7UX5l2Tlm6LhgU=
 github.com/gabriel-vasile/mimetype v1.4.2 h1:w5qFW6JKBz9Y393Y4q372O9A7cUSequkh1Q7OhCmWKU=
diff --git a/server/handlers/export.go b/server/handlers/export.go
index 4d564e8..9ebb7f9 100644
--- a/server/handlers/export.go
+++ b/server/handlers/export.go
@@ -521,7 +521,7 @@ func ExportPeriodToExcel(c *gin.Context) {
 			}
 		}
 
-		sheetName := fmt.Sprintf("%s", evaluation.Employee.Name)
+		sheetName := evaluation.Employee.Name
 		// Excel工作表名称有字符限制，如果名称过长或有特殊字符，使用简化名称
 		if len(sheetName) > 31 {
 			sheetName = fmt.Sprintf("员工%d", idx+1)
diff --git a/server/handlers/kpi.go b/server/handlers/kpi.go
index 0127f5f..ffced7a 100644
--- a/server/handlers/kpi.go
+++ b/server/handlers/kpi.go
@@ -157,6 +157,11 @@ func GetEvaluations(c *gin.Context) {
 	status := c.Query("status")
 	employeeID := c.Query("employee_id")
 	departmentID := c.Query("department_id")
+	// 周期筛选参数
+	period := c.Query("period")
+	yearStr := c.Query("year")
+	monthStr := c.Query("month")
+	quarterStr := c.Query("quarter")
 
 	// 验证分页参数
 	if page < 1 {
@@ -167,7 +172,7 @@ func GetEvaluations(c *gin.Context) {
 	}
 
 	// 构建查询
-	query := models.DB.Preload("Employee.Department").Preload("Template").Preload("Scores")
+	query := models.DB.Preload("Employee.Department").Preload("Template").Preload("Scores").Preload("Scores.Item")
 
 	// 添加筛选条件
 	if status != "" {
@@ -180,6 +185,23 @@ func GetEvaluations(c *gin.Context) {
 		query = query.Where("employee_id IN (SELECT id FROM employees WHERE department_id = ?)", departmentID)
 	}
 
+	// 添加周期筛选条件
+	if period != "" {
+		query = query.Where("period = ?", period)
+	}
+	if yearStr != "" {
+		year, _ := strconv.Atoi(yearStr)
+		query = query.Where("year = ?", year)
+	}
+	if monthStr != "" {
+		month, _ := strconv.Atoi(monthStr)
+		query = query.Where("month = ?", month)
+	}
+	if quarterStr != "" {
+		quarter, _ := strconv.Atoi(quarterStr)
+		query = query.Where("quarter = ?", quarter)
+	}
+
 	// 获取总数
 	var total int64
 	countQuery := models.DB.Model(&models.KPIEvaluation{})
@@ -192,6 +214,23 @@ func GetEvaluations(c *gin.Context) {
 	if departmentID != "" {
 		countQuery = countQuery.Where("employee_id IN (SELECT id FROM employees WHERE department_id = ?)", departmentID)
 	}
+
+	// 在计数查询中也添加周期筛选条件
+	if period != "" {
+		countQuery = countQuery.Where("period = ?", period)
+	}
+	if yearStr != "" {
+		year, _ := strconv.Atoi(yearStr)
+		countQuery = countQuery.Where("year = ?", year)
+	}
+	if monthStr != "" {
+		month, _ := strconv.Atoi(monthStr)
+		countQuery = countQuery.Where("month = ?", month)
+	}
+	if quarterStr != "" {
+		quarter, _ := strconv.Atoi(quarterStr)
+		countQuery = countQuery.Where("quarter = ?", quarter)
+	}
 	if err := countQuery.Count(&total).Error; err != nil {
 		c.JSON(http.StatusInternalServerError, gin.H{
 			"error":   "获取评估总数失败",
@@ -240,8 +279,28 @@ func CreateEvaluation(c *gin.Context) {
 	// 开始数据库事务
 	tx := models.DB.Begin()
 
+	row := models.KPIEvaluation{}
+	result := tx.Preload("Employee").
+		Where("employee_id = ? AND template_id = ? AND period = ? AND year = ? AND month = ?",
+			evaluation.EmployeeID, evaluation.TemplateID, evaluation.Period, evaluation.Year, evaluation.Month).
+		Find(&row).Limit(1)
+	if result.Error != nil {
+		tx.Rollback()
+		c.JSON(http.StatusInternalServerError, gin.H{
+			"error": "创建评估失败",
+		})
+		return
+	}
+	if row.ID > 0 {
+		tx.Rollback()
+		c.JSON(http.StatusBadRequest, gin.H{
+			"error": fmt.Sprintf("员工【%s】评估记录已存在", row.Employee.Name),
+		})
+		return
+	}
+
 	// 创建评估记录
-	result := tx.Create(&evaluation)
+	result = tx.Create(&evaluation)
 	if result.Error != nil {
 		tx.Rollback()
 		c.JSON(http.StatusInternalServerError, gin.H{