diff --git a/module/project/control.php b/module/project/control.php
index 21578f9be9..5067caf52e 100755
--- a/module/project/control.php
+++ b/module/project/control.php
@@ -1016,6 +1016,7 @@ class project extends control
      * Project test task list.
      *
      * @param  int    $projectID
+     * @param  int    $productID
      * @param  string $orderBy
      * @param  int    $recTotal
      * @param  int    $recPerPage
@@ -1023,7 +1024,7 @@ class project extends control
      * @access public
      * @return void
      */
-    public function testtask(int $projectID = 0, string $orderBy = 'id_desc', int $recTotal = 0, int $recPerPage = 20, int $pageID = 1)
+    public function testtask(int $projectID = 0, int $productID = 0, string $orderBy = 'id_desc', int $recTotal = 0, int $recPerPage = 20, int $pageID = 1)
     {
         $this->session->set('testtaskList', $this->app->getURI(true), 'project');
 
@@ -1034,17 +1035,18 @@ class project extends control
         $pager = pager::init($recTotal, $recPerPage, $pageID);
 
         $project = $this->project->getByID($projectID);
-        $tasks   = $this->loadModel('testtask')->getProjectTasks($projectID, $orderBy, $pager);
+        $tasks   = $this->loadModel('testtask')->getProjectTasks($projectID, $productID, $orderBy, $pager);
 
         $this->projectZen->assignTesttaskVars($tasks);
 
-        $this->view->title    = $project->name . $this->lang->hyphen . $this->lang->project->common;
-        $this->view->project  = $project;
-        $this->view->pager    = $pager;
-        $this->view->orderBy  = $orderBy;
-        $this->view->users    = $this->loadModel('user')->getPairs('noclosed|noletter');
-        $this->view->products = $this->loadModel('product')->getPairs('', 0);
-        $this->view->actions  = $this->loadModel('action')->getList('testtask', $projectID);
+        $this->view->title     = $project->name . $this->lang->hyphen . $this->lang->project->common;
+        $this->view->project   = $project;
+        $this->view->productID = $productID;
+        $this->view->pager     = $pager;
+        $this->view->orderBy   = $orderBy;
+        $this->view->users     = $this->loadModel('user')->getPairs('noclosed|noletter');
+        $this->view->products  = $this->loadModel('product')->getProducts($projectID, 'all', '', false);
+        $this->view->actions   = $this->loadModel('action')->getList('testtask', $projectID);
         $this->display();
     }
 
diff --git a/module/project/ui/testtask.html.php b/module/project/ui/testtask.html.php
index e6881c2277..d0fb9bd564 100644
--- a/module/project/ui/testtask.html.php
+++ b/module/project/ui/testtask.html.php
@@ -14,6 +14,18 @@ jsVar('allTasks', $lang->testtask->allTasks);
 jsVar('pageSummary', sprintf($lang->testtask->allSummary, count($tasks), $waitCount, $testingCount, $blockedCount, $doneCount));
 jsVar('checkedAllSummary', $lang->testtask->checkedAllSummary);
 
+$productItems[] = array('text' => $lang->testtask->all, 'url' => createLink('project', 'testtask', array('projectID' => $project->id)));
+foreach($products as $currentProductID => $productName)
+{
+    $productItems[] = array('text' => $productName, 'url' => createLink('project', 'testtask', array('projectID' => $project->id, 'productID' => $currentProductID)));
+}
+
+$productDropdown = dropdown
+(
+    to('trigger', btn($productID ? zget($products, $productID) : $lang->testtask->all, setClass('ghost'))),
+    set::items($productItems)
+);
+
 featureBar
 (
     li
@@ -24,7 +36,8 @@ featureBar
             set('class', 'active'),
             $lang->testtask->browse
         )
-    )
+    ),
+    to::before($productDropdown),
 );
 
 $canModify = common::canModify('project', $project);
@@ -67,7 +80,7 @@ dtable
     set::taskData($tasks),
     set::userMap($users),
     set::orderBy($orderBy),
-    set::sortLink(createLink('project', 'testtask', "projectID={$project->id}&orderBy={name}_{sortType}&recTotal={$pager->recTotal}&recPerPage={$pager->recPerPage}&pageID={$pager->pageID}")),
+    set::sortLink(createLink('project', 'testtask', "projectID={$project->id}&productID={$productID}&orderBy={name}_{sortType}&recTotal={$pager->recTotal}&recPerPage={$pager->recPerPage}&pageID={$pager->pageID}")),
     set::plugins(array('cellspan')),
     set::getCellSpan(jsRaw('window.getCellSpan')),
     set::footToolbar($footToolbar),
@@ -75,7 +88,7 @@ dtable
     (
         'recPerPage'  => $pager->recPerPage,
         'recTotal'    => $pager->recTotal,
-        'linkCreator' => helper::createLink('project', 'testtask', "projectID={$project->id}&orderBy={$orderBy}&recTotal={$pager->recTotal}&recPerPage={recPerPage}&page={page}")
+        'linkCreator' => helper::createLink('project', 'testtask', "projectID={$project->id}&productID={$productID}&orderBy={$orderBy}&recTotal={$pager->recTotal}&recPerPage={recPerPage}&page={page}")
     ))),
     set::checkInfo(jsRaw('function(checkedIDList){return window.setStatistics(this, checkedIDList);}')),
     set::emptyTip($lang->testtask->noTesttask),
diff --git a/module/testtask/model.php b/module/testtask/model.php
index 1a85a558e3..f5efeaf443 100755
--- a/module/testtask/model.php
+++ b/module/testtask/model.php
@@ -147,12 +147,13 @@ class testtaskModel extends model
      * Get testtasks of a project.
      *
      * @param  int    $projectID
+     * @param  int    $productID
      * @param  string $orderBy
      * @param  object $pager
      * @access public
      * @return array
      */
-    public function getProjectTasks(int $projectID, string $orderBy = 'id_desc', ?object $pager = null): array
+    public function getProjectTasks(int $projectID, int $productID = 0, string $orderBy = 'id_desc', ?object $pager = null): array
     {
         $tasks = $this->dao->select('t1.*, t1.id AS idName, t5.multiple, IF(t4.shadow = 1, t5.name, t4.name) AS productName, t3.name AS executionName, t2.name AS buildName, t2.branch AS branch, t5.name AS projectName, t4.`order` AS productOrder')
             ->from(TABLE_TESTTASK)->alias('t1')
@@ -163,6 +164,7 @@ class testtaskModel extends model
             ->where('t1.project')->eq((int)$projectID)
             ->andWhere('t1.auto')->ne('unit')
             ->andWhere('t1.deleted')->eq('0')
+            ->beginIF($productID)->andWhere('t1.product')->eq($productID)->fi()
             ->orderBy('productOrder_asc, ' . $orderBy)
             ->page($pager)
             ->fetchAll('id', false);