The invention discloses a battery electric vehicle power exchanging double-acting end effector. The battery electric vehicle power exchanging double-acting end effector comprises protective mechanisms, roller groups, a sliding block and guide rail mechanism, a horizontal unlocking mechanism, a bracket and a vertical unlocking mechanism; the roller groups are evenly mounted on the bracket and formsa revolute pair with the bracket; the protective mechanisms are mounted on two sides of the bracket and one end of the bracket, can be lifted and lowered relative to the bracket, and are used for limiting a battery unloaded from a car battery storage; the vertical unlocking mechanism is mounted on the bracket, matched with the number and the position of locking parts of fixed battery and used forbattery unloading and mounting of chassis type power exchanging; the block sliding and rail guiding mechanism is mounted on the bracket; and the horizontal unlocking mechanism is mounted on the sliding block and guide rail mechanism, can move along the sliding block and guide rail mechanism, is used for being matched with the battery locking device, and achieves movement of the battery and battery unloading and mounting of side-box type power exchanging by locking and unlocking. The effector achieves simultaneously the power exchanging of the chassis type and the side-box type, and solves theproblem that various power exchanging devices are difficult to communicate with each other.