diff --git a/assets b/assets
index 380f844eb9e05d7b3b7746dca9f449a56bf69185..c5e374fd2c8cdfe8a4bece60dba7d27b047eb0f1 160000
--- a/assets
+++ b/assets
@@ -1 +1 @@
-Subproject commit 380f844eb9e05d7b3b7746dca9f449a56bf69185
+Subproject commit c5e374fd2c8cdfe8a4bece60dba7d27b047eb0f1
diff --git a/models/policy.go b/models/policy.go
index c92d2dc95167161603cb70936ebe364089551ef1..fc9708425b8ba88ea523c8e58e11ff88bb068212 100644
--- a/models/policy.go
+++ b/models/policy.go
@@ -8,7 +8,9 @@ import (
 	"github.com/jinzhu/gorm"
 	"net/url"
 	"path"
+	"path/filepath"
 	"strconv"
+	"strings"
 	"time"
 )
 
@@ -48,6 +50,16 @@ type PolicyOption struct {
 	OdRedirect string `json:"od_redirect,omitempty"`
 }
 
+var thumbSuffix = map[string][]string{
+	"local":    {},
+	"qiniu":    {".psd", ".jpg", ".jpeg", ".png", ".gif", ".webp", ".tiff", ".bmp"},
+	"oss":      {".jpg", ".jpeg", ".png", ".gif", ".webp", ".tiff", ".bmp"},
+	"cos":      {},
+	"upyun":    {".svg", ".jpg", ".jpeg", ".png", ".gif", ".webp", ".tiff", ".bmp"},
+	"remote":   {},
+	"onedrive": {"*"},
+}
+
 func init() {
 	// 注册缓存用到的复杂结构
 	gob.Register(Policy{})
@@ -178,6 +190,17 @@ func (policy *Policy) IsDirectlyPreview() bool {
 	return policy.Type == "local"
 }
 
+// IsThumbExist 给定文件名，返回此存储策略下是否可能存在缩略图
+func (policy *Policy) IsThumbExist(name string) bool {
+	if list, ok := thumbSuffix[policy.Type]; ok {
+		if len(list) == 1 && list[0] == "*" {
+			return true
+		}
+		return util.ContainsString(list, strings.ToLower(filepath.Ext(name)))
+	}
+	return false
+}
+
 // IsTransitUpload 返回此策略上传给定size文件时是否需要服务端中转
 func (policy *Policy) IsTransitUpload(size uint64) bool {
 	if policy.Type == "local" {
@@ -199,11 +222,6 @@ func (policy *Policy) IsThumbGenerateNeeded() bool {
 	return policy.Type == "local"
 }
 
-// IsMockThumbNeeded 返回此策略是否需要在上传后默认当图像文件
-func (policy *Policy) IsMockThumbNeeded() bool {
-	return policy.Type == "onedrive"
-}
-
 // GetUploadURL 获取文件上传服务API地址
 func (policy *Policy) GetUploadURL() string {
 	server, err := url.Parse(policy.Server)
diff --git a/pkg/filesystem/file.go b/pkg/filesystem/file.go
index d6a71c7f12eac22a2889ba4df9f6a4a3f6918f1b..deaf98aa3d454044dcdc198683fd0097e3cc26f4 100644
--- a/pkg/filesystem/file.go
+++ b/pkg/filesystem/file.go
@@ -63,6 +63,11 @@ func (fs *FileSystem) AddFile(ctx context.Context, parent *model.Folder) (*model
 		FolderID:   parent.ID,
 		PolicyID:   fs.User.Policy.ID,
 	}
+
+	if fs.User.Policy.IsThumbExist(file.GetFileName()) {
+		newFile.PicInfo = "1,1"
+	}
+
 	_, err = newFile.Create()
 
 	if err != nil {
diff --git a/pkg/filesystem/hooks.go b/pkg/filesystem/hooks.go
index 54dd80930e7fa8faa5755fe676c6692ef060b58e..1c39ee420ebee1ad17fb2f2bbb93df3fdd3fb2fc 100644
--- a/pkg/filesystem/hooks.go
+++ b/pkg/filesystem/hooks.go
@@ -297,8 +297,6 @@ func GenericAfterUpload(ctx context.Context, fs *FileSystem) error {
 	// 异步尝试生成缩略图
 	if fs.User.Policy.IsThumbGenerateNeeded() {
 		go fs.GenerateThumbnail(ctx, file)
-	} else if fs.User.Policy.IsMockThumbNeeded() {
-		file.UpdatePicInfo("1,1")
 	}
 
 	return nil