Objective Rare metal ore reserves are an important strategic resource,and their metallogenic mechanism and mineralization studies have also been received widespread international attention.The Shihuiyao super-large Rb-Nb-Ta deposit from the Southern Great Xing'an Range,NE China is the world's largest Rb deposit,whose reserves have exceeded 23.22 million tons of Rb2O at a Rb grade of 0.16wt %,associated with 2.76 million tons of Ta2O5+Nb2O5 at grades of 0.026wt%.Here we present geochemical,EMPA and in situ LA-ICP-MS analysis data for the Shihuiyao Rb-Nb-Ta deposit,in order to reveal its metallogenic mechanism and implications for the relationship between the magma evolution and rare metal mineralization.收起