diff --git a/module/program/test/lib/programzen.unittest.class.php b/module/program/test/lib/programzen.unittest.class.php
index 34c1c5a01d..9af2fc25c7 100644
--- a/module/program/test/lib/programzen.unittest.class.php
+++ b/module/program/test/lib/programzen.unittest.class.php
@@ -61,4 +61,22 @@ class programTest
 
         return $result;
     }
+
+    /**
+     * Test buildTree method.
+     *
+     * @param  array $programs
+     * @param  int   $parentID
+     * @access public
+     * @return array
+     */
+    public function buildTreeTest(array $programs, int $parentID = 0)
+    {
+        $method = $this->objectZen->getMethod('buildTree');
+        $method->setAccessible(true);
+        $result = $method->invokeArgs($this->objectZen->newInstance(), array($programs, $parentID));
+        if(dao::isError()) return dao::getError();
+
+        return $result;
+    }
 }
\ No newline at end of file
diff --git a/module/program/test/zen/buildtree.php b/module/program/test/zen/buildtree.php
new file mode 100755
index 0000000000..5881010978
--- /dev/null
+++ b/module/program/test/zen/buildtree.php
@@ -0,0 +1,75 @@
+#!/usr/bin/env php
+<?php
+
+/**
+
+title=测试 programZen::buildTree();
+timeout=0
+cid=0
+
+- 测试步骤1:空数组输入 >> 返回空数组
+- 测试步骤2:单层顶级项目集(parent=0) >> 返回包含所有顶级项目集
+- 测试步骤3:多层嵌套项目集树形结构 >> 正确构建父子关系和递归子节点
+- 测试步骤4:指定父ID构建子树 >> 返回指定父ID的子项目集
+- 测试步骤5:包含project类型的混合数组 >> 过滤掉project类型只保留program
+- 测试步骤6:树节点属性完整性 >> 包含id、text、label、keys等必需属性
+
+*/
+
+include dirname(__FILE__, 5) . '/test/lib/init.php';
+include dirname(__FILE__, 2) . '/lib/programzen.unittest.class.php';
+
+su('admin');
+
+$programTest = new programTest();
+
+$program1 = new stdClass();
+$program1->id = 1;
+$program1->name = '顶级项目集A';
+$program1->type = 'program';
+$program1->parent = 0;
+
+$program2 = new stdClass();
+$program2->id = 2;
+$program2->name = '顶级项目集B';
+$program2->type = 'program';
+$program2->parent = 0;
+
+$program3 = new stdClass();
+$program3->id = 3;
+$program3->name = '子项目集C';
+$program3->type = 'program';
+$program3->parent = 1;
+
+$program4 = new stdClass();
+$program4->id = 4;
+$program4->name = '子项目集D';
+$program4->type = 'program';
+$program4->parent = 1;
+
+$program5 = new stdClass();
+$program5->id = 5;
+$program5->name = '孙项目集E';
+$program5->type = 'program';
+$program5->parent = 3;
+
+$project1 = new stdClass();
+$project1->id = 8;
+$project1->name = '独立项目1';
+$project1->type = 'project';
+$project1->parent = 0;
+
+$project2 = new stdClass();
+$project2->id = 9;
+$project2->name = '独立项目2';
+$project2->type = 'project';
+$project2->parent = 0;
+
+$programs = array(1 => $program1, 2 => $program2, 3 => $program3, 4 => $program4, 5 => $program5, 8 => $project1, 9 => $project2);
+
+r($programTest->buildTreeTest(array(), 0)) && p() && e('0');
+r($programTest->buildTreeTest($programs, 0)) && p('0:id;1:id') && e('1;2');
+r($programTest->buildTreeTest($programs, 0)) && p('0:text') && e('顶级项目集A');
+r($programTest->buildTreeTest($programs, 1)) && p('0:id;1:id') && e('3;4');
+r($programTest->buildTreeTest($programs, 3)) && p('0:id,text') && e('5,孙项目集E');
+r($programTest->buildTreeTest($programs, 0)) && p('0:id,text,keys') && e('1,顶级项目集A,dingjixiangmujia djxmja');