Abstract: The paper analzed and studied an available conception defintin and connotation of the mine water nflow volume,provided the problems existed in hecomnotative understanding of the mine water infow volume,compared and analyzed the conception ofthe severaleasy confised relevant waler voumesin the predictf.n calculation of the mine water inflow volume and provided the nev defintion of the mine water infow with more cear conotation and the basic attibutedfatues Tiepaper analzed the advantages and disadvanages of the conventional fschnical methods appied to the predicton calcuation of the avalable waer infow volumes in he main mines and tressed the statement on the problems of the application to the acual engineeing pracices.Based on the understanding ofthe mine water ifow :onception and the basic atrbuted features in combination with the appication requirementsof the mine wae infow prediction resulis n the mine construction and mine production process,the paper provided the development tendency of the mine water inflow prediction technology.