The present disclosure provides a device for battery formation, which comprises a base plate, a press plate, a positioning block and a connecting assembly. The press plate is connected with the base plate, the positioning block and the connecting assembly each are provided as plurality in number and the plurality of the connecting assemblies correspond to the plurality of positioning blocks. The positioning block has a main portion and a protruding portion, the main portion is provided between the base plate and the press plate, and the protruding portion extends from a surface of the main portion away from the press plate. The base plate is provided with a plurality of positioning holes, and the protruding portion of each positioning block is inserted into the positioning hole. Each connecting assembly is provided to the main portion of a corresponding positioning block and used for being connected to a battery.