diff --git a/module/convert/test/lib/convert.unittest.class.php b/module/convert/test/lib/convert.unittest.class.php
index 13a1aad585..fe5d548c24 100644
--- a/module/convert/test/lib/convert.unittest.class.php
+++ b/module/convert/test/lib/convert.unittest.class.php
@@ -3273,4 +3273,25 @@ class convertTest
         return $result;
     }
 
+    /**
+     * Test processBuildinFieldData method.
+     *
+     * @param  string $module
+     * @param  object $data
+     * @param  object $object
+     * @param  array  $relations
+     * @param  bool   $buildinFlow
+     * @access public
+     * @return mixed
+     */
+    public function processBuildinFieldDataTest($module = null, $data = null, $object = null, $relations = array(), $buildinFlow = false)
+    {
+        if($module === null || $data === null || $object === null) return false;
+        
+        $result = $this->objectTao->processBuildinFieldData($module, $data, $object, $relations, $buildinFlow);
+        if(dao::isError()) return dao::getError();
+
+        return $result;
+    }
+
 }
diff --git a/module/convert/test/tao/processbulidinfielddata.php b/module/convert/test/tao/processbulidinfielddata.php
new file mode 100755
index 0000000000..b060cf7def
--- /dev/null
+++ b/module/convert/test/tao/processbulidinfielddata.php
@@ -0,0 +1,103 @@
+#!/usr/bin/env php
+<?php
+
+/**
+
+title=测试 convertTao::processBuildinFieldData();
+timeout=0
+cid=0
+
+- 执行convertTest模块的processBuildinFieldDataTest方法，参数是'story', $data1, $object1, $relations1 属性custom_field_1 @test_value
+- 执行convertTest模块的processBuildinFieldDataTest方法，参数是'story', $data2, $object2, $relations2 属性existing_field @existing_value
+- 执行convertTest模块的processBuildinFieldDataTest方法，参数是'bug', $data3, $object3, $relations3 属性existing_field @existing_value
+- 执行convertTest模块的processBuildinFieldDataTest方法，参数是'task', $data4, $object4, $relations4 
+ - 属性field1 @value1
+ - 属性field2 @value2
+ - 属性field3 @value3
+- 执行convertTest模块的processBuildinFieldDataTest方法，参数是'epic', $data5, $object5, $relations5 属性filled_field @filled_value
+
+*/
+
+include dirname(__FILE__, 5) . '/test/lib/init.php';
+include dirname(__FILE__, 2) . '/lib/convert.unittest.class.php';
+
+su('admin');
+
+$convertTest = new convertTest();
+
+// 测试步骤1：正常字段映射处理
+$data1 = new stdclass();
+$data1->issuetype = 'Story';
+$data1->customfield_10001 = 'test_value';
+
+$object1 = new stdclass();
+
+$relations1 = array(
+    'zentaoFieldStory' => array(
+        'customfield_10001' => 'custom_field_1'
+    )
+);
+
+r($convertTest->processBuildinFieldDataTest('story', $data1, $object1, $relations1)) && p('custom_field_1') && e('test_value');
+
+// 测试步骤2：空关系数组处理
+$data2 = new stdclass();
+$data2->issuetype = 'Story';
+$object2 = new stdclass();
+$object2->existing_field = 'existing_value';
+
+$relations2 = array();
+
+r($convertTest->processBuildinFieldDataTest('story', $data2, $object2, $relations2)) && p('existing_field') && e('existing_value');
+
+// 测试步骤3：无匹配字段处理
+$data3 = new stdclass();
+$data3->issuetype = 'Bug';
+$data3->unknown_field = 'unknown_value';
+
+$object3 = new stdclass();
+$object3->existing_field = 'existing_value';
+
+$relations3 = array(
+    'zentaoFieldBug' => array(
+        'different_field' => 'mapped_field'
+    )
+);
+
+r($convertTest->processBuildinFieldDataTest('bug', $data3, $object3, $relations3)) && p('existing_field') && e('existing_value');
+
+// 测试步骤4：多字段同时映射
+$data4 = new stdclass();
+$data4->issuetype = 'Task';
+$data4->customfield_001 = 'value1';
+$data4->customfield_002 = 'value2';
+$data4->customfield_003 = 'value3';
+
+$object4 = new stdclass();
+
+$relations4 = array(
+    'zentaoFieldTask' => array(
+        'customfield_001' => 'field1',
+        'customfield_002' => 'field2',
+        'customfield_003' => 'field3'
+    )
+);
+
+r($convertTest->processBuildinFieldDataTest('task', $data4, $object4, $relations4)) && p('field1,field2,field3') && e('value1,value2,value3');
+
+// 测试步骤5：空数据字段处理
+$data5 = new stdclass();
+$data5->issuetype = 'Epic';
+$data5->customfield_empty = '';
+$data5->customfield_filled = 'filled_value';
+
+$object5 = new stdclass();
+
+$relations5 = array(
+    'zentaoFieldEpic' => array(
+        'customfield_empty' => 'empty_field',
+        'customfield_filled' => 'filled_field'
+    )
+);
+
+r($convertTest->processBuildinFieldDataTest('epic', $data5, $object5, $relations5)) && p('filled_field') && e('filled_value');
\ No newline at end of file