diff --git a/deduplicate_customers.go b/deduplicate_customers.go
new file mode 100644
index 0000000..e04d98c
--- /dev/null
+++ b/deduplicate_customers.go
@@ -0,0 +1,80 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"time"
+)
+
+type Customer struct {
+	ID              string    `json:"id"`
+	CreatedAt       time.Time `json:"createdAt"`
+	CustomerName    string    `json:"customerName"`
+	IntendedProduct string    `json:"intendedProduct"`
+	Version         string    `json:"version"`
+	Description     string    `json:"description"`
+	Solution        string    `json:"solution"`
+	Type            string    `json:"type"`
+	Module          string    `json:"module"`
+	StatusProgress  string    `json:"statusProgress"`
+	Reporter        string    `json:"reporter"`
+}
+
+func main() {
+	// 读取客户数据
+	data, err := os.ReadFile("data/customers.json")
+	if err != nil {
+		fmt.Printf("读取文件失败: %v\n", err)
+		return
+	}
+
+	var customers []Customer
+	if err := json.Unmarshal(data, &customers); err != nil {
+		fmt.Printf("解析JSON失败: %v\n", err)
+		return
+	}
+
+	fmt.Printf("原始记录数: %d\n", len(customers))
+
+	// 使用map来去重,保留每个客户名称最新的记录
+	customerMap := make(map[string]Customer)
+
+	for _, customer := range customers {
+		existing, exists := customerMap[customer.CustomerName]
+		if !exists || customer.CreatedAt.After(existing.CreatedAt) {
+			customerMap[customer.CustomerName] = customer
+		}
+	}
+
+	// 转换回切片
+	deduplicatedCustomers := make([]Customer, 0, len(customerMap))
+	for _, customer := range customerMap {
+		deduplicatedCustomers = append(deduplicatedCustomers, customer)
+	}
+
+	fmt.Printf("去重后记录数: %d\n", len(deduplicatedCustomers))
+	fmt.Printf("删除了 %d 条重复记录\n", len(customers)-len(deduplicatedCustomers))
+
+	// 备份原文件
+	backupFile := "data/customers.json.backup"
+	if err := os.WriteFile(backupFile, data, 0644); err != nil {
+		fmt.Printf("备份文件失败: %v\n", err)
+		return
+	}
+	fmt.Printf("原文件已备份到: %s\n", backupFile)
+
+	// 写入去重后的数据
+	outputData, err := json.MarshalIndent(deduplicatedCustomers, "", "  ")
+	if err != nil {
+		fmt.Printf("生成JSON失败: %v\n", err)
+		return
+	}
+
+	if err := os.WriteFile("data/customers.json", outputData, 0644); err != nil {
+		fmt.Printf("写入文件失败: %v\n", err)
+		return
+	}
+
+	fmt.Println("✅ 去重完成!")
+}