Du Shoutian,teacher of Xianfeng emperor,didn't make great achievements in the royal government and is not well-known by people,but he was awarded the title of "Wen Zheng",the highest posthumous among civil officials in the Qing Dynasty after his death.It is no accident,in fact,there are some important factors to achieve his status in the "birth","tests","events","death",which shall be paid our attention to.