Abstract: My teacher whose name is Yang Ying-qin has expounded the relation between Daishijingkao which was collected by national library of China and Dai Zhen’s Maoshibuzhuan.The Article makes a supplementary investigation towards the problem through the important evidence that Wang Wu-feng who was Dai Zhen’s close friend quoted many content of Daishijingkao in his Shixuenvwei.Porhaps the time when Wang Wu-feng saw Daishijingkao was that Dai Zhen stayed at Wang Wa-feg’s home which named bushuyuan.