///To understand the complexity of the development and evolution of ore-controlling fracture system in Dajishan tungsten deposit, Quannan County, State w:st="on">Jiangxi Province, the authors collected rock samples at different depth of deposit, and performed experiments on rock acoustic emission. The results showed that the sequence of rock acoustic emission events has a distinctive feature, and generally goes through three processes of occurrence, quiescence and burst. The author applies the theory of complexity to studying the ore-controlling fractures of the vein-type tungsten ore deposits in Dajishan. The following conclusions were drawn. The dynamics of the onset and development of fracture system is similar to that of the ore-forming system, that is, it consists of the self-organization arising from the coupling of random motion, the coherent behavior produced by interaction between subsystems, the realization of cooperative synchronization, the occurrence of critical transition point, and the attainment of self-organized criticality. All of them result from the coupling and interaction of physical movement of minerals, time and space.
