Abstract: The Jiangsu-Anhui pyrophyllitite ore-bearing belt was discovered by the Regional Suruey Party of the Bureau of Geology and Mineral Resources of Jiangsu Province during the 1: 50,000 geological and mineral resource surveys. Now a project is being applied for in order to carry out a detailed survey within the territory of Jiangsu. This paper introduces the course of its discovery, elucidates the difference between the connotations of the rock pyrophyllitite and the mineral pyrophyllte, introduces the geo15gical characteristics of prophyllitite ore deposits of "breccia pipe type" and "altered rock type", and preliminarily summarizes the pre-conditions and indications for ore prospecting.