In archaeology, the two periods which were respectively represented by the pottery of Pre zhou dynasty and Beginning of the Zhou dynasty were overlapped around the date when the King Wu of Zhou dynasty conquered the Shang Dynasty. It is not true that there was a dramatic increase of Shang cultural elements in Feng and Hao district after King Wu's conquest, as Mr.Xu Lianggao said, and therefore it is not scientific to call the stratigraphic sequence found in 97SCMT1, in which the pit of Pre Zhou was overlapped by the level of the beginning of the Zhou, as the boundary mark between the Shang and the Zhou Dynasties. By the influence of this incorrect proposition, the extent of date when the King Wu of the Zhou dynasty conquered the Shang Dynasty was proposed by the experts in radio carbon, so the date was not convincing totally. It is a big fault that the Xia Shang Zhou Chronological Project advanced the exact year for the King Wu of the Zhou Dynasty conquering the Shang Dynasty based on this extent of the date.