diff --git a/lib/gitlab-cli/lib/gitlab/client/repositories.rb b/lib/gitlab-cli/lib/gitlab/client/repositories.rb
index f489e5009..e56a740db 100644
--- a/lib/gitlab-cli/lib/gitlab/client/repositories.rb
+++ b/lib/gitlab-cli/lib/gitlab/client/repositories.rb
@@ -85,5 +85,12 @@ class Gitlab::Client
       get("/projects/#{project}/repository/commits/#{sha}/diff") 
     end
     alias_method :repo_commit_diff, :commit_diff
+
+    #Get the commits count of each contributor in a project
+    #@param [Integer] project the ID fo a project.
+    # @return [Gitlab::ObjectifiedHash]
+    def contributors(project)
+      get("/projects/#{project}/repository/contributors")
+    end
   end
 end
diff --git a/lib/tasks/project_commits_query.rake b/lib/tasks/project_commits_query.rake
new file mode 100644
index 000000000..df33419f3
--- /dev/null
+++ b/lib/tasks/project_commits_query.rake
@@ -0,0 +1,30 @@
+#coding=utf-8
+
+namespace :gitlab do
+  desc "sync gitlab's users which lost in last sync"
+  task :query => :environment do
+    g = Gitlab.client
+    projects = Project.all
+    users_email = User.find_by_sql("select mail from users where mail != '' ")
+    projects.each do|project|
+      gpid = project.gpid
+      begin
+        contributors_list = g.contributors(gpid)
+      rescue
+        next
+      end
+      puts "project_id  #{project.id}"
+      contributors_list.each do|contributor|
+        if users_email.include?(contributor.email)
+          contributors_list.delete(contributor)
+        end
+      end
+
+      contributors_list.each do|contributor|
+        puts "name #{contributor.name}"
+        puts "email  #{contributor.email}"
+        puts "commits_count  #{contributor.commits}"
+      end
+   end
+  end
+end
\ No newline at end of file