Abstract: The formation of large-scale to super large-scale deposits require large-scale fluid participation,and the mechanism of fluid emplacement is an unsolved scientific problem.In this paper,the mechanism of mineralization is explained by pumping suction,and it is proposed that there are two kinds of pumping suction in geological processes,namely structural pumping and magmatic pumping.The former is a vacuum-state structural pump formed because the strata of different physical properties,due to tectonics,are metamorphosed and deformed in varying degrees under the condition of good sealing of the cap-rocks.Under the communication of fault to deep magma chamber or fluid reservoir,deep ore-forming fluid invades shallow rock mass to form ore bodies under pump suction.The latter is a vacuum-state magmatic pump formed in the deep magma chamber or channel because the magma in the deep magma chamber is pumped up and invades,and the deeper fluid will be pumped under the action of fault communication.By using pumping-suction mineralization,the range of tectonic metamorphism and deformation in a region can be delineated in detail,and the range of mineralization can be defined,which can provide an important reference for prospecting prediction.