diff --git a/Gemfile b/Gemfile
index 984972fc2..e398c4fd4 100644
--- a/Gemfile
+++ b/Gemfile
@@ -13,6 +13,7 @@ gem 'uglifier', '>= 1.3.0'
 gem 'turbolinks', '~> 5'
 gem 'jbuilder', '~> 2.5'
 gem 'groupdate', '~> 4.1.0'
+gem 'chartkick'
 gem 'grape-entity', '~> 0.7.1'
 gem 'kaminari', '~> 1.1', '>= 1.1.1'
 
diff --git a/app/assets/javascripts/application.js b/app/assets/javascripts/application.js
index 839fadb57..4e57f532b 100644
--- a/app/assets/javascripts/application.js
+++ b/app/assets/javascripts/application.js
@@ -16,3 +16,5 @@
 //= require jquery3
 //= require popper
 //= require bootstrap-sprockets
+//= require chartkick
+//= require Chart.bundle
diff --git a/app/controllers/admins/project_statistics_controller.rb b/app/controllers/admins/project_statistics_controller.rb
new file mode 100644
index 000000000..43db94b55
--- /dev/null
+++ b/app/controllers/admins/project_statistics_controller.rb
@@ -0,0 +1,70 @@
+class Admins::ProjectStatisticsController < Admins::BaseController
+
+
+  def index
+    projects = Project.project_statics_select.all
+    by_time = params[:time]
+    project_type = params[:project_type]
+    is_private = params[:is_private]
+    project_category_id = params[:project_category_id]
+    project_language_id = params[:project_language_id]
+    license_id = params[:license_id]
+
+    projects = projects.where(project_type: project_type)  if project_type.present?
+    projects = projects.where(is_private: is_private)  if is_private.present?
+    projects = projects.where(project_category_id: project_category_id)  if project_category_id.present?
+    projects = projects.where(project_language_id: project_language_id)  if project_language_id.present?
+    projects = projects.where(license_id: license_id)  if license_id.present?
+
+    if by_time.present?
+      case by_time.to_s
+      when "week"
+        projects = projects.group_by_week(:created_on).size
+      when "month"
+        projects = projects.group_by_month(:created_on).size
+      when "quarter"
+        projects = projects.group_by_month(:created_on).size
+      when "year"
+        projects = projects.group_by_year(:created_on).size
+      else
+        projects = projects.group_by_day(:created_on).size
+      end
+    end
+    @projects = projects
+  end
+
+  def visits_static
+    projects = Project.project_statics_select.all
+    by_time = params[:time]
+    project_type = params[:project_type]
+    is_private = params[:is_private]
+    project_category_id = params[:project_category_id]
+    project_language_id = params[:project_language_id]
+    license_id = params[:license_id]
+
+    projects = projects.where(project_type: project_type)  if project_type.present?
+    projects = projects.where(is_private: is_private)  if is_private.present?
+    projects = projects.where(project_category_id: project_category_id)  if project_category_id.present?
+    projects = projects.where(project_language_id: project_language_id)  if project_language_id.present?
+    projects = projects.where(license_id: license_id)  if license_id.present?
+
+    if by_time.present?
+      case by_time.to_s
+      when "week"
+        projects = projects.group_by_week(:created_on).size
+      when "month"
+        projects = projects.group_by_month(:created_on).size
+      when "quarter"
+        projects = projects.group_by_month(:created_on).size
+      when "year"
+        projects = projects.group_by_year(:created_on).size
+      else
+        projects = projects.group_by_day(:created_on).size
+      end
+    end
+    @projects = projects
+  end
+
+
+
+end
\ No newline at end of file
diff --git a/app/controllers/admins/statistics_controller.rb b/app/controllers/admins/statistics_controller.rb
deleted file mode 100644
index 707f36363..000000000
--- a/app/controllers/admins/statistics_controller.rb
+++ /dev/null
@@ -1,35 +0,0 @@
-class Admins::AboutsController < Admins::BaseController
-
-  def index
-    projects = Project.all.project_statics_select
-    by_time = params[:time]
-    project_type = params[:project_type]
-    is_private = params[:is_private]
-    project_category_id = params[:project_category_id]
-    project_language_id = params[:project_language_id]
-    license_id = params[:license_id]
-
-    projects = projects.where(project_type: project_type)  if project_type.present?
-    projects = projects.where(is_private: is_private)  if is_private.present?
-    projects = projects.where(project_category_id: project_category_id)  if project_category_id.present?
-    projects = projects.where(project_language_id: project_language_id)  if project_language_id.present?
-    projects = projects.where(license_id: license_id)  if license_id.present?
-
-    if by_time.present?
-      case by_time.to_s
-      when "week"
-        projects = projects.group_by_week(:created_on).count
-      when "month"
-        projects = projects.group_by_month(:created_on).count
-      when "quarter"
-        projects = projects.group_by_month(:created_on).count
-      when "year"
-        projects = projects.group_by_year(:created_on).count
-      else
-        projects = projects.group_by_day(:created_on).count
-      end
-    end
-    @projects = projects
-  end
-
-end
\ No newline at end of file
diff --git a/app/controllers/issues_controller.rb b/app/controllers/issues_controller.rb
index 8d19be016..f51e03146 100644
--- a/app/controllers/issues_controller.rb
+++ b/app/controllers/issues_controller.rb
@@ -173,6 +173,7 @@ class IssuesController < ApplicationController
             attachment = Attachment.select(:id, :container_id, :container_type)&.find_by_id(id)
             unless attachment.blank?
               attachment.container = @issue
+              attachment.author_id = current_user.id
               attachment.save
             end
           end
@@ -241,6 +242,7 @@ class IssuesController < ApplicationController
             attachment = Attachment.select(:id, :container_id, :container_type)&.find_by_id(id)
             unless attachment.blank?
               attachment.container = @issue
+              attachment.author_id = current_user.id
               attachment.save
             end
           end
diff --git a/app/models/project.rb b/app/models/project.rb
index 78538ba7e..97d4aca94 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -30,7 +30,7 @@ class Project < ApplicationRecord
   has_and_belongs_to_many :trackers, :order => "#{Tracker.table_name}.position"
 
   after_save :check_project_members
-  scope :project_statics_select, -> {select(:id,:name, :is_public, :identifier, :status, :project_type, :hidden_repo, :user_id, :forked_count, :visits, :project_category_id, :project_language_id, :license_id, :ignore_id, :watchers_count, :created_on)}
+  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)}
 
 
   # 创建者
diff --git a/app/views/admins/project_statistics/index.html.erb b/app/views/admins/project_statistics/index.html.erb
new file mode 100644
index 000000000..a5054aee4
--- /dev/null
+++ b/app/views/admins/project_statistics/index.html.erb
@@ -0,0 +1,2 @@
+
+<%= line_chart @projects %>
\ No newline at end of file
diff --git a/app/views/admins/statistics/index.html.erb b/app/views/admins/statistics/index.html.erb
deleted file mode 100644
index 030693d17..000000000
--- a/app/views/admins/statistics/index.html.erb
+++ /dev/null
@@ -1 +0,0 @@
-<%= @projects %>
\ No newline at end of file
diff --git a/config/application.rb b/config/application.rb
index baa0011f2..1fb0b4627 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -19,7 +19,7 @@ module Educoderplus
     #
     # config.educoder = config_for(:configuration)
 
-    config.active_record.default_timezone = :local
+    config.active_record.default_timezone = :utc
     config.time_zone = 'Beijing'
 
     # I18n
diff --git a/config/routes.rb b/config/routes.rb
index 38d59cb90..b119eb11e 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -743,6 +743,11 @@ Rails.application.routes.draw do
 
   namespace :admins do
     get '/', to: 'dashboards#index'
+    resources :project_statistics, only: [:index] do
+      collection do
+        get :visits_static
+      end
+    end
     resources :major_informations, only: [:index]
     resources :ec_templates, only: [:index, :destroy] do
       collection do