diff --git a/server/biz/model/dto/training.go b/server/biz/model/dto/training.go
index 83f50d3..851a098 100644
--- a/server/biz/model/dto/training.go
+++ b/server/biz/model/dto/training.go
@@ -457,6 +457,7 @@ type ModelCatalogItem struct {
 	Notes       string      `json:"notes"`
 	PublishedAt *gtime.Time `json:"publishedAt"`
 	DownloadUrl string      `json:"downloadUrl"` // /download/trainings/<文件名前缀>.tflite（前缀空回退数据集名）
+	CoverUrl    string      `json:"coverUrl"`    // /api/v1/app/cover?namePrefix=<前缀>（App 模型清单缩略图）
 }
 
 type ModelCatalogRes struct {
diff --git a/server/biz/service/model_version.go b/server/biz/service/model_version.go
index 3bd078e..54d0469 100644
--- a/server/biz/service/model_version.go
+++ b/server/biz/service/model_version.go
@@ -3,6 +3,7 @@ package service
 import (
 	"context"
 	"encoding/json"
+	"net/url"
 
 	"observer-server/biz/dao"
 	"observer-server/biz/model/dto"
@@ -39,6 +40,7 @@ func (s *modelVersionService) ClientCatalog(ctx context.Context) (*dto.ModelCata
 			Notes:       v.Notes,
 			PublishedAt: v.CreatedAt,
 			DownloadUrl: "/download/trainings/" + modelNames[v.DatasetId] + ".tflite",
+			CoverUrl:    "/api/v1/app/cover?namePrefix=" + url.PathEscape(modelNames[v.DatasetId]),
 		})
 	}
 	return &dto.ModelCatalogRes{List: items}, nil