Analysis of the kaolinite deposit and its ore-deposition environment shows that the areas of Fugu hard sedimentary kaolinite deposits were formed respectively in the lake controlled by freshwater behind the coast, the lake between distributary channels, delta plain lakes and moldering riparian lakes. A deposit formed in different sedimentary environments varies in orebody characteristics, ore types and industrial uses. The Deposits formed in the lake controlled by freshwater behind the coast and lake between distributary channels have a large scale and a wide distribution, however, because of the low kaolinite content, high impurity content, and poor quality of the kaolinite, their industrial uses were limited in Porcelain Manufacture.