The Hongshan porphyry-cryptoexplosive breccia type copper deposit occurs in a metamorphic rockseries of the Mesoproterozoic Zhongcun Group. Orebodies are distributed inside and outside porphyry-cryptoexplosive breccia pipes. The deposit involves five ore-forming types, Le the porphyry type, crytoexplosivebreccia type. contact-zone veinlet-disseminated type, in-pipe fracture-zone filling-replacement type and out-of-pipetracture-zone filling-replacement type, forming an ore-forming system of “five ore-forming types within a singlerock body” Fluid inclusion and isotope geochemical studies indicate the following: S, Pb, O and Sr were derivedfrom the lower crust, Nd was derived from the continental crust or depleted mantle and rare earth elements (REE)and trace elements have the crustal source characters; fluids consist dominantly of formation water, metamorphic wa-ter and meteoric water with a part of magmatic mater; heat came from porphyry while the latter originated from par-tial melting caused by shear heating in the lower crust and upper mantle. According to its origin the deposit is classi-fied as the hypabyssal and near-surface, meso-and hypothermal copper deposit ussociated with the late Yanshanianporphyry-cryptoexplosive breccia. The Hongshan porphyry-cryptoexplosive breccia type copper deposit occurs in a metamorphic rockseries of the Mesoproterozoic Zhongcun Group. Orebodies are distributed inside and outside porphyry-cryptoexplosive breccia pipes. The deposit involves five ore-forming types, Le the porphyry type, crytoexplosivebreccia type. Contact -zone veinlet-disseminated type, in-pipe fracture-zone filling-replacement type and out-of-pipetracture-zone filling-replacement type, forming an ore-forming system of “five ore-forming types within a singlerock body” Fluid inclusion and isotope geochemical studies indicate the following: S, Pb, O and Sr were derived from the lower crust, Nd was derived from the continental crust or depleted mantle and rare earth elements (REE) and trace elements have the crustal source characters; fluids consists dominantly of formation water, metamorphic wa-ter and meteoric water with a part of magmatic mater; heat came from porphyry while the latter originated from par-tial melti ng caused by shear heating in the lower crust and upper mantle. According to its origin the deposit is classi-fied as the hypabyssal and near-surface, meso-and hypothermal copper deposit ussociated with the late Yanshanianporphyry-cryptoexplosive breccia.