Abstract: The molybdenum mineral in the composite deposit of copper, sulphur, tungsten, molybdenum located in Yongping Town, Jiangxi Province has a close spatiotemporal and cause relation with the Shizitou granite on the basis of a general survey and data research. The mineralization of molybdenum presents in the form of dense multilayered ore bodies showing in thin or net vein. Researches on the ore thickness and grade variation rules indicate that the thickness and grade of molybdenum ore increases with the depth. The molybdenum mineralization center and deposit position is in 14-20 lines (elevation:-400 ~-600 m down). So the inner and outer circumscriber' s deep part of rock body is the focus of prospecting molybdenum.