Tungsten-cassiterite deposits in Jiangxi Province are the largest in the world (they account for more than 50% of the world's tungsten production). Great industrial value, rare association of minerals, peculiar genetic features make these deposits extremely important, interesting and fertile material for research. Nevertheless, there are almost no published works devoted to the questions of their genesis and mineralogy. In fact, the only one is an extremely general work by Ke-Chinsu, devoted to a regional overview of the deposits. Some additions to this work can be found in the monograph by Lee and Wang Chun Yu. In addition, a description of these deposits was given by V. A. Tokarev for the Mining Museum at the Leningrad Mining Institute.