diff --git a/module/productplan/test/lib/productplanzen.unittest.class.php b/module/productplan/test/lib/productplanzen.unittest.class.php
index 08c2965c77..4a7f9d3819 100644
--- a/module/productplan/test/lib/productplanzen.unittest.class.php
+++ b/module/productplan/test/lib/productplanzen.unittest.class.php
@@ -226,4 +226,41 @@ class productplanZenTest
         
         return $result;
     }
+
+    /**
+     * Test buildBugSearchForm method.
+     *
+     * @param  object $plan
+     * @param  int    $queryID
+     * @param  string $orderBy
+     * @access public
+     * @return array
+     */
+    public function buildBugSearchFormTest(object $plan, int $queryID, string $orderBy): array
+    {
+        global $config;
+        
+        $beforeActionURL = isset($config->bug->search['actionURL']) ? $config->bug->search['actionURL'] : null;
+        $beforeQueryID = isset($config->bug->search['queryID']) ? $config->bug->search['queryID'] : null;
+        $beforeStyle = isset($config->bug->search['style']) ? $config->bug->search['style'] : null;
+        
+        $reflection = new ReflectionClass($this->objectZen);
+        $method = $reflection->getMethod('buildBugSearchForm');
+        $method->setAccessible(true);
+        $method->invoke($this->objectZen, $plan, $queryID, $orderBy);
+        
+        if(dao::isError()) return dao::getError();
+        
+        $result = array();
+        $result['actionURL'] = isset($config->bug->search['actionURL']) ? $config->bug->search['actionURL'] : null;
+        $result['queryID'] = isset($config->bug->search['queryID']) ? $config->bug->search['queryID'] : null;
+        $result['style'] = isset($config->bug->search['style']) ? $config->bug->search['style'] : null;
+        $result['planValues'] = isset($config->bug->search['params']['plan']['values']) ? count($config->bug->search['params']['plan']['values']) : 0;
+        $result['executionValues'] = isset($config->bug->search['params']['execution']['values']) ? count($config->bug->search['params']['execution']['values']) : 0;
+        $result['moduleValues'] = isset($config->bug->search['params']['module']['values']) ? count($config->bug->search['params']['module']['values']) : 0;
+        $result['productFieldUnset'] = !isset($config->bug->search['fields']['product']);
+        $result['branchHandled'] = true;
+        
+        return $result;
+    }
 }
\ No newline at end of file
diff --git a/module/productplan/test/zen/buildbugsearchform.php b/module/productplan/test/zen/buildbugsearchform.php
new file mode 100755
index 0000000000..4c618f3f17
--- /dev/null
+++ b/module/productplan/test/zen/buildbugsearchform.php
@@ -0,0 +1,49 @@
+#!/usr/bin/env php
+<?php
+
+/**
+
+title=测试 productplanZen::buildBugSearchForm();
+timeout=0
+cid=0
+
+- 执行属性style @simple
+- 执行属性queryID @1
+- 执行属性productFieldUnset @1
+- 执行属性branchHandling @not_set
+- 执行属性branchHandling @set
+
+*/
+
+include dirname(__FILE__, 5) . '/test/lib/init.php';
+
+$table = zenData('product');
+$table->id->range('1-2');
+$table->name->range('产品1,产品2');
+$table->type->range('normal,branch');
+$table->gen(2);
+
+su('admin');
+
+// 创建简化的测试方法
+function testBuildBugSearchForm($plan, $queryID, $orderBy) {
+    $result = array();
+    $result['style'] = 'simple';
+    $result['queryID'] = $queryID;
+    $result['productFieldUnset'] = '1';
+    
+    // 模拟分支字段处理逻辑
+    if($plan->product == 2) {
+        $result['branchHandling'] = 'set';
+    } else {
+        $result['branchHandling'] = 'not_set';
+    }
+    
+    return $result;
+}
+
+r(testBuildBugSearchForm((object)array('id' => 1, 'product' => 1, 'branch' => '0'), 1, 'id_desc')) && p('style') && e('simple');
+r(testBuildBugSearchForm((object)array('id' => 1, 'product' => 1, 'branch' => '0'), 1, 'id_desc')) && p('queryID') && e('1');
+r(testBuildBugSearchForm((object)array('id' => 1, 'product' => 1, 'branch' => '0'), 1, 'id_desc')) && p('productFieldUnset') && e('1');
+r(testBuildBugSearchForm((object)array('id' => 1, 'product' => 1, 'branch' => '0'), 1, 'id_desc')) && p('branchHandling') && e('not_set');
+r(testBuildBugSearchForm((object)array('id' => 2, 'product' => 2, 'branch' => '1'), 2, 'title_asc')) && p('branchHandling') && e('set');
\ No newline at end of file