diff --git a/module/program/control.php b/module/program/control.php
index eca417d3c9..4e469600b1 100644
--- a/module/program/control.php
+++ b/module/program/control.php
@@ -394,16 +394,16 @@ class program extends control
     public function delete(int $programID)
     {
         /* The program can NOT be deleted if it has a child program. */
-        $childrenCount = $this->dao->select('count(*) as count')->from(TABLE_PROGRAM)->where('parent')->eq($programID)->andWhere('deleted')->eq('0')->fetch('count');
-        if($childrenCount)
+        $childrenPairs = $this->program->getChildrenPairsByID($programID);
+        if(count($childrenPairs))
         {
             if($this->viewType == 'json' or (defined('RUN_MODE') && RUN_MODE == 'api')) return $this->send(array('result' => 'fail', 'message' => 'Can not delete the program has children.'));
             return $this->send(array('result' => 'fail', 'callback' => "zui.Modal.alert({icon: 'icon-exclamation-sign', iconClass: 'warning-pale rounded-full icon-2x',  message: '{$this->lang->program->hasChildren}'})"));
         }
 
         /* The program can NOT be deleted if it has a product. */
-        $productCount = $this->dao->select('count(*) as count')->from(TABLE_PRODUCT)->where('program')->eq($programID)->andWhere('deleted')->eq('0')->fetch('count');
-        if($productCount) return $this->send(array('result' => 'fail', 'callback' => "zui.Modal.alert('{$this->lang->program->hasProduct}');"));
+        $productPairs = $this->program->getProductPairsByID($programID);
+        if(count($productPairs)) return $this->send(array('result' => 'fail', 'callback' => "zui.Modal.alert('{$this->lang->program->hasProduct}');"));
 
         /* Mark the program is deleted and record the action log. */
         $program = $this->dao->select('*')->from(TABLE_PROGRAM)->where('id')->eq($programID)->andWhere('deleted')->eq('0')->fetch();
@@ -745,4 +745,30 @@ class program extends control
 
         $this->render();
     }
+
+    /**
+     * 获取项目集的子项目集数量。
+     *
+     * @param  int    $programID
+     * @access public
+     * @return int
+     */
+    public function ajaxGetChildrenCount(int $programID): int
+    {
+        $childrenPairs = $this->program->getChildrenPairsByID($programID);
+        return print(count($childrenPairs));
+    }
+
+    /**
+     * 获取项目集下的产品数量。
+     *
+     * @param  int    $programID
+     * @access public
+     * @return int
+     */
+    public function ajaxGetProductCount(int $programID): int
+    {
+        $productPairs = $this->program->getProductPairsByID($programID);
+        return print(count($productPairs));
+    }
 }
diff --git a/module/program/js/browse.ui.js b/module/program/js/browse.ui.js
index e3bdbd3151..f900da44bb 100644
--- a/module/program/js/browse.ui.js
+++ b/module/program/js/browse.ui.js
@@ -40,13 +40,42 @@ window.renderCell = function(result, {col, row})
 
 window.confirmDelete = function(projectID, module, projectName)
 {
-    var deleteURL = $.createLink(module, 'delete', "projectID=" + projectID);
-    if(module == 'program') deleteURL = $.createLink('program', 'delete', "programID=" + projectID + '&confirm=yes');
-
-    zui.Modal.confirm({message: confirmDeleteLang[module].replace('%s', projectName), icon:'icon-exclamation-sign', iconClass: 'warning-pale rounded-full icon-2x'}).then((res) =>
+    let deleteURL = $.createLink(module, 'delete', "projectID=" + projectID);
+    if(module == 'program')
     {
-        if(res) $.ajaxSubmit({url: deleteURL, load: true});
-    });
+        $.get($.createLink('program', 'ajaxGetChildrenCount', `programID=${projectID}`), function(childrenCount)
+        {
+            if(childrenCount > 0)
+            {
+                zui.Modal.alert({message: hasChildrenTip, icon:'icon-exclamation-sign', iconClass: 'warning-pale rounded-full icon-2x'});
+            }
+            else
+            {
+                $.get($.createLink('program', 'ajaxGetProductCount', `programID=${projectID}`), function(productCount)
+                {
+                    if(productCount > 0)
+                    {
+                        zui.Modal.alert({message: hasProductTip, icon:'icon-exclamation-sign', iconClass: 'warning-pale rounded-full icon-2x'});
+                    }
+                    else
+                    {
+                        deleteURL = $.createLink('program', 'delete', "programID=" + projectID + '&confirm=yes');
+                        zui.Modal.confirm({message: confirmDeleteLang[module].replace('%s', projectName), icon:'icon-exclamation-sign', iconClass: 'warning-pale rounded-full icon-2x'}).then((res) =>
+                        {
+                            if(res) $.ajaxSubmit({url: deleteURL, load: true});
+                        });
+                    }
+                });
+            }
+        })
+    }
+    else
+    {
+        zui.Modal.confirm({message: confirmDeleteLang[module].replace('%s', projectName), icon:'icon-exclamation-sign', iconClass: 'warning-pale rounded-full icon-2x'}).then((res) =>
+        {
+            if(res) $.ajaxSubmit({url: deleteURL, load: true});
+        });
+    }
 }
 
 $(document).off('click', '[data-formaction]').on('click', '[data-formaction]', function()
diff --git a/module/program/model.php b/module/program/model.php
index cc959180b6..8712eeaa0d 100644
--- a/module/program/model.php
+++ b/module/program/model.php
@@ -1382,4 +1382,28 @@ class programModel extends model
     {
         return !empty($programID) && ($this->app->user->admin || (strpos(",{$this->app->user->view->programs},", ",{$programID},") !== false));
     }
+
+    /**
+     * 通过项目集ID获取子项目集和项目。
+     *
+     * @param  int    $programID
+     * @access public
+     * @return array
+     */
+    public function getChildrenPairsByID(int $programID): array
+    {
+        return $this->dao->select('id, name')->from(TABLE_PROGRAM)->where('parent')->eq($programID)->andWhere('deleted')->eq('0')->fetchPairs();
+    }
+
+    /**
+     * 通过项目集ID获取产品。
+     *
+     * @param  int    $programID
+     * @access public
+     * @return array
+     */
+    public function getProductPairsByID(int $programID): array
+    {
+        return $this->dao->select('id, name')->from(TABLE_PRODUCT)->where('program')->eq($programID)->andWhere('deleted')->eq('0')->fetchPairs();
+    }
 }
diff --git a/module/program/ui/browse.html.php b/module/program/ui/browse.html.php
index 688b2ddd10..912767879c 100644
--- a/module/program/ui/browse.html.php
+++ b/module/program/ui/browse.html.php
@@ -10,6 +10,8 @@ jsVar('sumSubBudgetLang',    $lang->program->sumSubBudget);
 jsVar('exceededBudgetLang',  $lang->program->exceededBudget);
 jsVar('remainingBudgetLang', $lang->program->remainingBudget);
 jsVar('langManDay',          $lang->program->manDay);
+jsVar('hasChildrenTip',      $lang->program->hasChildren);
+jsVar('hasProductTip',       $lang->program->hasProduct);
 
 $this->loadModel('project');
 $cols         = $this->loadModel('datatable')->getSetting('program');