diff --git a/README.md b/README.md
index edcaae3..3ca57a9 100644
--- a/README.md
+++ b/README.md
@@ -24,6 +24,8 @@
 
 设备 `status` 仅表示归属状态（在库/已分销），业务激活状态通过 `activation_status` 返回；设备需同时具备生效中主套餐和任意已实名绑定卡才视为已激活。
 
+后台设备列表 `GET /api/admin/devices` 支持按 `virtual_no`、`imei`、设备名称、归属状态、激活状态、店铺、套餐系列等条件筛选。
+
 ### 三种客户类型
 
 | 客户类型 | 业务特点 | 典型场景 | 钱包归属 |
diff --git a/docs/admin-openapi.yaml b/docs/admin-openapi.yaml
index 487fcdc..5898408 100644
--- a/docs/admin-openapi.yaml
+++ b/docs/admin-openapi.yaml
@@ -13162,6 +13162,13 @@ paths:
                     description: 虚拟号(模糊查询)
                     maxLength: 100
                     type: string
+                - description: 设备IMEI(模糊查询)
+                  in: query
+                  name: imei
+                  schema:
+                    description: 设备IMEI(模糊查询)
+                    maxLength: 20
+                    type: string
                 - description: 设备名称(模糊查询)
                   in: query
                   name: device_name
diff --git a/docs/device-imei-search/功能总结.md b/docs/device-imei-search/功能总结.md
new file mode 100644
index 0000000..006b643
--- /dev/null
+++ b/docs/device-imei-search/功能总结.md
@@ -0,0 +1,16 @@
+# 设备列表 IMEI 搜索功能总结
+
+## 功能说明
+
+后台设备列表接口 `GET /api/admin/devices` 支持通过 `imei` 查询参数按设备 IMEI 模糊搜索设备。
+
+## 影响范围
+
+- 请求参数新增 `imei`，最大长度 20。
+- 查询链路从 Handler 解析参数后，经 Service 传递到 Store 层过滤条件。
+- OpenAPI 文档已同步新增 `imei` 查询参数。
+
+## 验证方式
+
+- 执行 `go run cmd/gendocs/main.go` 重新生成 OpenAPI 文档。
+- 执行 `go build ./...` 验证编译通过。
diff --git a/internal/model/dto/device_dto.go b/internal/model/dto/device_dto.go
index 418d1bd..be11eec 100644
--- a/internal/model/dto/device_dto.go
+++ b/internal/model/dto/device_dto.go
@@ -6,6 +6,7 @@ type ListDeviceRequest struct {
 	Page             int        `json:"page" query:"page" validate:"omitempty,min=1" minimum:"1" description:"页码"`
 	PageSize         int        `json:"page_size" query:"page_size" validate:"omitempty,min=1,max=100" minimum:"1" maximum:"100" description:"每页数量"`
 	VirtualNo        string     `json:"virtual_no" query:"virtual_no" validate:"omitempty,max=100" maxLength:"100" description:"虚拟号(模糊查询)"`
+	IMEI             string     `json:"imei" query:"imei" validate:"omitempty,max=20" maxLength:"20" description:"设备IMEI(模糊查询)"`
 	DeviceName       string     `json:"device_name" query:"device_name" validate:"omitempty,max=255" maxLength:"255" description:"设备名称(模糊查询)"`
 	Status           *int       `json:"status" query:"status" validate:"omitempty,min=1,max=2" minimum:"1" maximum:"2" description:"归属状态 (1:在库, 2:已分销)"`
 	ActivationStatus *int       `json:"activation_status" query:"activation_status" validate:"omitempty,min=0,max=1" minimum:"0" maximum:"1" description:"激活状态 (0:未激活, 1:已激活；需有生效中主套餐且任意绑定卡已实名)"`
diff --git a/internal/service/device/service.go b/internal/service/device/service.go
index bb28c28..b92393f 100644
--- a/internal/service/device/service.go
+++ b/internal/service/device/service.go
@@ -87,6 +87,9 @@ func (s *Service) List(ctx context.Context, req *dto.ListDeviceRequest) (*dto.Li
 	if req.VirtualNo != "" {
 		filters["virtual_no"] = req.VirtualNo
 	}
+	if req.IMEI != "" {
+		filters["imei"] = req.IMEI
+	}
 	if req.DeviceName != "" {
 		filters["device_name"] = req.DeviceName
 	}
diff --git a/internal/store/postgres/device_store.go b/internal/store/postgres/device_store.go
index 6be57bb..16bced1 100644
--- a/internal/store/postgres/device_store.go
+++ b/internal/store/postgres/device_store.go
@@ -131,6 +131,9 @@ func (s *DeviceStore) applyDeviceFilters(query *gorm.DB, filters map[string]any)
 	if virtualNo, ok := filters["virtual_no"].(string); ok && virtualNo != "" {
 		query = query.Where("virtual_no LIKE ?", "%"+virtualNo+"%")
 	}
+	if imei, ok := filters["imei"].(string); ok && imei != "" {
+		query = query.Where("imei LIKE ?", "%"+imei+"%")
+	}
 	if virtualNoStart, ok := filters["virtual_no_start"].(string); ok && virtualNoStart != "" {
 		query = query.Where("virtual_no >= ?", virtualNoStart)
 	}