The invention discloses split type direct-current charging piles for electric automobiles, a system and a method. The split type direct-current charging piles for the electric automobiles are in parallel connection to an alternating-current terminal; bus-bars are sequentially connected to one another by charging modules in charger screens of the split type direct-current charging piles through parallel contactors so as to form a loop; a master control module, a front acquiring module and a rear acquiring module of each split direct-current charging pile are connected to one another through a CAN (controller area network) bus; electric energy intelligent load distribution is implemented through the rear acquiring modules by control on switching-off of the parallel contactors; and each charging module is communicated with the master control module of the corresponding direct-current charging pile through a CAN bus, is in parallel connection with a normally open contact of a corresponding intermediate relay and is connected with the adjacent charging modules so that a CAN communication loop is formed. Each charging module is connected with the master control module of the corresponding direct-current charging pile which requires power allocation through the corresponding intermediate relay when responding power allocation; and centralized control is implemented. Moreover, a charging combination mode is flexible, the synthetic cost is low, and the utilization ratio of the charging modules is high.