Abstract: In order to provide reference for the deep prospecting work of the Zini copper deposit,firstly，the regional ore-forming geological background and the metallogenic regularity of the adjacent mining area are analyzed comprehensively；then,based on the core logging of the 156 drills that are already constructed and geological mapping of the mining area,the deposit geological characteristics such as ore-body occurrence characteristics，ore-controlling factors,alteration characteristics are summarized systematically;finally，based on the metallogenic geological background and deposit geological charactersitcs,the deposit genesis and deep prospecting prospect of the the Zini copper deposit are discussed in depth.The results show that:①the morphology of the ore-body of the Zini copper deposit is mainly controlled by fault fracture zone,the metallogenic materials along the fault fracture zone from the deep to the shallow and mineralized in the corner of the fault fracture zone.②the extruded fault that is the production of the subduction between Garze-Litang oceanic crust and the Zhongza block is not noly the ore-controlling fracture but also the destructive fracture,it show that the genesis of Zini copper deposit is closely related to the large-scale tectono-magmatic activities of the Yidun island area Indo-Yanshan epoch，the middle-low temperature hydrothermal alteration characteristics of chloritization，sericitization，silicification and carbonatization which are throughout the fracture zone indicate that the ore-forming fluid with the middle-low temperature magmatic hydrothermal characteristics.③Based on the alteration and structural characteristics,it is pointed out that the lithologic contact surface of the top part of the upper triassic Hagong formation(T₃ha₃) and the middle part of the Hagong formation(T₃ha₃) and the corner of the fault and the flat-ramp have great metallogenic potential,they can be regarded as the most favorable position for the further detailed exploration work.

Key words: Deposit geological characteristics, Deep prospecting, Metallogenic regularity, Ore-controlling factors, Alteration characteristics, Deposit genesis, Metallogenic fluid