diff --git a/README.md b/README.md
index 2b62be62..0d1008ad 100644
--- a/README.md
+++ b/README.md
@@ -1363,6 +1363,65 @@ http://localhost:3000/api/projects  | jq
 ```
 ---
 
+#### 推荐项目
+```
+GET api/projects/recommend
+```
+*示例*
+```
+curl -X GET \
+http://localhost:3000/api/projects/recommend  | jq
+```
+
+*返回参数说明:*
+
+|参数名|类型|说明|
+|-|-|-|
+|total_count     |int   |项目总条数 |
+|id              |string   |项目id |
+|name            |string|项目名称|
+|description     |string|项目简介|
+|visits          |int|流量数|
+|forked_count    |int|被fork的数量|
+|praises_count   |int|star数量|
+|is_public       |boolean|是否公开， true:公开，false:未公开|
+|mirror_url      |string|镜像url|
+|last_update_time|int|最后更新时间，为UNIX格式的时间戳|
+|author          |object|项目创建者|
+|-- name         |string|用户名，也是用户标识|
+|category        |object|项目类别|
+|-- id           |int|项目类型id|
+|-- name         |string|项目类型名称|
+|language        |object|项目语言|
+|-- id           |int|项目语言id|
+|-- name         |string|项目语言名称|
+
+
+返回值
+```
+[
+  {
+    "id": 20,
+    "repo_id": null,
+    "identifier": "PNAekinmH",
+    "name": "FNILL",
+    "visits": 13567,
+    "author": {
+      "name": "王一达",
+      "login": "wangyida",
+      "image_url": "avatars/User/b"
+    },
+    "category": {
+      "id": 8,
+      "name": "其他"
+    }
+  },
+  ...
+]
+
+```
+---
+
 ### 获取分支列表
 ```
 GET /api/:namespace_id/:id/branches
diff --git a/app/controllers/attachments_controller.rb b/app/controllers/attachments_controller.rb
index a79aae42..16842fb5 100644
--- a/app/controllers/attachments_controller.rb
+++ b/app/controllers/attachments_controller.rb
@@ -2,7 +2,7 @@
 #
 #  文件上传
 class AttachmentsController < ApplicationController
-  before_action :require_login, :check_auth, except: [:show, :preview_attachment]
+  before_action :require_login, :check_auth, except: [:show, :preview_attachment, :get_file]
   before_action :find_file, only: %i[show destroy]
   before_action :attachment_candown, only: [:show]
   skip_before_action :check_sign, only: [:show, :create]
@@ -28,6 +28,15 @@ class AttachmentsController < ApplicationController
     update_downloads(@file)
   end
 
+  
+  def get_file 
+    normal_status(-1, "参数缺失") if params[:download_url].blank?
+    url = URI.encode(params[:download_url].to_s.gsub("http:", "https:"))
+    response = Faraday.get(url)
+    filename = params[:download_url].to_s.split("/").pop()
+    send_data(response.body.force_encoding("UTF-8"),  filename: filename, type: "application/octet-stream", disposition: 'attachment')
+  end
+
   def create
     # 1. 本地存储
     # 2. 上传到云
diff --git a/app/controllers/projects_controller.rb b/app/controllers/projects_controller.rb
index cadedcea..cee53128 100644
--- a/app/controllers/projects_controller.rb
+++ b/app/controllers/projects_controller.rb
@@ -2,9 +2,8 @@ class ProjectsController < ApplicationController
   include ApplicationHelper
   include OperateProjectAbilityAble
   include ProjectsHelper
-
-  before_action :require_login, except: %i[index branches group_type_list simple show fork_users praise_users watch_users]
-  before_action :load_project, except: %i[index group_type_list migrate create]
+  before_action :require_login, except: %i[index branches group_type_list simple show fork_users praise_users watch_users recommend]
+  before_action :load_project, except: %i[index group_type_list migrate create recommend]
   before_action :authorizate_user_can_edit_project!, only: %i[update]
   before_action :project_public?, only: %i[fork_users praise_users watch_users]
 
@@ -104,6 +103,10 @@ class ProjectsController < ApplicationController
     json_response(@project, current_user)
   end
 
+  def recommend
+    @projects = Project.recommend.includes(:repository, :project_category, owner: :user_extension).limit(5)
+  end
+
 
   private
   def project_params
diff --git a/app/helpers/repositories_helper.rb b/app/helpers/repositories_helper.rb
index 2b6d9d40..f41fbd36 100644
--- a/app/helpers/repositories_helper.rb
+++ b/app/helpers/repositories_helper.rb
@@ -1,11 +1,11 @@
 module RepositoriesHelper
   def render_decode64_content(str)
     return nil if str.blank?
-    Base64.decode64(str).force_encoding('UTF-8')
+    Base64.decode64(str).force_encoding("UTF-8")
   end
 
   def download_type(str)
-    default_type = %w(xlsx xls ppt pptx pdf zip 7z rar exe pdb obj idb png jpg gif tif psd svg RData rdata)
+    default_type = %w(xlsx xls ppt pptx pdf zip 7z rar exe pdb obj idb png jpg gif tif psd svg RData rdata doc docx mpp vsdx)
     default_type.include?(str&.downcase)
   end
 
diff --git a/app/models/project.rb b/app/models/project.rb
index c30f67f1..42f35bfd 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -36,6 +36,8 @@ class Project < ApplicationRecord
   after_save :check_project_members
   scope :project_statics_select, -> {select(:id,:name, :is_public, :identifier, :status, :project_type, :user_id, :forked_count, :visits, :project_category_id, :project_language_id, :license_id, :ignore_id, :watchers_count, :created_on)}
   scope :no_anomory_projects, -> {where("projects.user_id is not null and projects.user_id != ?", 2)}
+  scope :recommend,           -> { visible.project_statics_select.where(recommend: true) }
+
 
 
   def self.search_project(search)
diff --git a/app/views/projects/recommend.json.jbuilder b/app/views/projects/recommend.json.jbuilder
new file mode 100644
index 00000000..1da5be40
--- /dev/null
+++ b/app/views/projects/recommend.json.jbuilder
@@ -0,0 +1,22 @@
+json.array! @projects do |project|
+  owner = project.owner
+  json.id project.id
+  json.repo_id project&.repository&.id
+  json.identifier project.identifier
+  json.name project.name
+  json.visits project.visits
+  json.author do
+    json.name owner.try(:show_real_name)
+    json.login owner.login
+    json.image_url url_to_avatar(owner)
+  end
+
+  json.category do
+    if project.project_category.blank?
+      json.nil!
+    else
+      json.id project.project_category.id
+      json.name project.project_category.name
+    end
+  end
+end
diff --git a/app/views/repositories/_simple_entry.json.jbuilder b/app/views/repositories/_simple_entry.json.jbuilder
index 4890f404..be603d91 100644
--- a/app/views/repositories/_simple_entry.json.jbuilder
+++ b/app/views/repositories/_simple_entry.json.jbuilder
@@ -7,7 +7,7 @@ json.sha entry['sha']
 json.path entry['path']
 json.type entry['type']
 json.size entry['size']
-json.content entry['content'].present? && !direct_download ? render_decode64_content(entry['content']).force_encoding('UTF-8') : ""
+json.content entry['content'].present? && !direct_download ? render_decode64_content(entry['content']) : ""
 json.target entry['target']
 json.download_url entry['download_url']
 json.direct_download direct_download
diff --git a/config/routes.rb b/config/routes.rb
index 7bbda653..d68fe8f2 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -8,8 +8,10 @@ Rails.application.routes.draw do
   # Serve websocket cable requests in-process
   mount ActionCable.server => '/cable'
 
+  get 'attachments/entries/get_file', to: 'attachments#get_file'
   get 'attachments/download/:id', to: 'attachments#show'
   get 'attachments/download/:id/:filename', to: 'attachments#show'
+
   get 'auth/qq/callback', to: 'oauth/qq#create'
   get 'auth/failure', to: 'oauth/base#auth_failure'
   get 'auth/cas/callback', to: 'oauth/cas#create'
@@ -18,6 +20,8 @@ Rails.application.routes.draw do
   get 'oauth/register', to: 'oauth#register'
   post 'oauth/auto_register', to: 'oauth#auto_register'
 
+  resources :edu_settings
+
   resources :edu_settings
   scope '/api' do
     namespace :ci  do
@@ -48,7 +52,7 @@ Rails.application.routes.draw do
       resources :compose_projects, only: [:create, :destroy]
     end
     resources :attachments do
-      member do 
+      member do
         post :preview_attachment
       end
       collection do
@@ -104,6 +108,7 @@ Rails.application.routes.draw do
       collection do
         post :migrate
         get :group_type_list
+        get :recommend
       end
     end
 
diff --git a/db/migrate/20200929062837_add_index_to_users_type.rb b/db/migrate/20200929062837_add_index_to_users_type.rb
new file mode 100644
index 00000000..d27ca9dd
--- /dev/null
+++ b/db/migrate/20200929062837_add_index_to_users_type.rb
@@ -0,0 +1,5 @@
+class AddIndexToUsersType < ActiveRecord::Migration[5.2]
+  def change
+    add_index :users, :type
+  end
+end
diff --git a/db/migrate/20201004034434_add_recommend_to_projects.rb b/db/migrate/20201004034434_add_recommend_to_projects.rb
new file mode 100644
index 00000000..d00b3eb6
--- /dev/null
+++ b/db/migrate/20201004034434_add_recommend_to_projects.rb
@@ -0,0 +1,5 @@
+class AddRecommendToProjects < ActiveRecord::Migration[5.2]
+  def change
+    add_column :projects, :recommend, :boolean, default: false
+  end
+end