Abstract: The paper describes alteration of the anthrocologic characteristics of the Permo-Carboniferous coal seams in Datong coalfield,caused by the lamprophyre intrusion. The datum in the paper explain the anthrocologic characteristics of the thermal metamorphic coal have something to do with the invasion temperature and raw rank etc. In coal geology exploration,researching into the anthrocologic characteristics of thermal metamorphic coal by means of anthrocology is very helpful to account for well log and decide the bound of estimation of reserves.