diff --git a/app/controllers/projects/jobs_controller.rb b/app/controllers/projects/jobs_controller.rb
index bfbbcba883f..d5ce790e2d9 100644
--- a/app/controllers/projects/jobs_controller.rb
+++ b/app/controllers/projects/jobs_controller.rb
@@ -4,10 +4,10 @@ class Projects::JobsController < Projects::ApplicationController
   include SendFileUpload
   include ContinueParams
 
-  before_action :build, except: [:index, :cancel_all]
+  before_action :build, except: [:index]
   before_action :authorize_read_build!
   before_action :authorize_update_build!,
-    except: [:index, :show, :status, :raw, :trace, :cancel_all, :erase]
+    except: [:index, :show, :status, :raw, :trace, :erase]
   before_action :authorize_erase_build!, only: [:erase]
   before_action :authorize_use_build_terminal!, only: [:terminal, :terminal_websocket_authorize]
   before_action :verify_api_request!, only: :terminal_websocket_authorize
@@ -39,16 +39,6 @@ class Projects::JobsController < Projects::ApplicationController
   end
   # rubocop: enable CodeReuse/ActiveRecord
 
-  def cancel_all
-    return access_denied! unless can?(current_user, :update_build, project)
-
-    @project.builds.running_or_pending.each do |build|
-      build.cancel if can?(current_user, :update_build, build)
-    end
-
-    redirect_to project_jobs_path(project)
-  end
-
   # rubocop: disable CodeReuse/ActiveRecord
   def show
     @pipeline = @build.pipeline
diff --git a/config/routes/project.rb b/config/routes/project.rb
index f50bf5ab76f..ef4c6c5a3cf 100644
--- a/config/routes/project.rb
+++ b/config/routes/project.rb
@@ -255,7 +255,6 @@ constraints(::Constraints::ProjectUrlConstrainer.new) do
 
         resources :jobs, only: [:index, :show], constraints: { id: /\d+/ } do
           collection do
-            post :cancel_all
 
             resources :artifacts, only: [] do
               collection do
diff --git a/spec/controllers/projects/jobs_controller_spec.rb b/spec/controllers/projects/jobs_controller_spec.rb
index 7f65fe551e9..d8a331b3cf0 100644
--- a/spec/controllers/projects/jobs_controller_spec.rb
+++ b/spec/controllers/projects/jobs_controller_spec.rb
@@ -770,50 +770,6 @@ describe Projects::JobsController, :clean_gitlab_redis_shared_state do
     end
   end
 
-  describe 'POST cancel_all' do
-    before do
-      project.add_developer(user)
-      sign_in(user)
-    end
-
-    context 'when jobs are cancelable' do
-      before do
-        create_list(:ci_build, 2, :cancelable, pipeline: pipeline)
-
-        post_cancel_all
-      end
-
-      it 'redirects to a index page' do
-        expect(response).to have_gitlab_http_status(:found)
-        expect(response).to redirect_to(namespace_project_jobs_path)
-      end
-
-      it 'transits to canceled' do
-        expect(Ci::Build.all).to all(be_canceled)
-      end
-    end
-
-    context 'when jobs are not cancelable' do
-      before do
-        create_list(:ci_build, 2, :canceled, pipeline: pipeline)
-
-        post_cancel_all
-      end
-
-      it 'redirects to a index page' do
-        expect(response).to have_gitlab_http_status(:found)
-        expect(response).to redirect_to(namespace_project_jobs_path)
-      end
-    end
-
-    def post_cancel_all
-      post :cancel_all, params: {
-                          namespace_id: project.namespace,
-                          project_id: project
-                        }
-    end
-  end
-
   describe 'POST erase' do
     let(:role) { :maintainer }