Abstract:Through field investigation, sampling testing and comparison of regional geological information, It is regarded that comprehensive geological characteristics of conglomerate occurred in the negative terrain in underground Paleozoic Cambrian-Ordovician limestone and dolomite in Xiazhuang, Wufuyu and Majiazhuang in south edge of Zibo depression can meet the definition of Neogene Baiyan formation in Shandong province recently. In these conglomerate, gold can be found, but diamond can not be found. The discovery of the formation can make up the lack of existing geological datas. It will not only be helpful for the study on geological structure development history, but also can provide valuable clues for future exploration work.