The utility model relates to a glove box for filling a lithium ion battery, which relates to the technical field of a battery production device. The upper part of a main box body is provided with a liquid adding box, one side of the liquid adding box is connected with one end of a liquid adding pipe, the lower part of the liquid adding pipe is sequentially provided with a valve I and a valve II from top to bottom, tracks are arranged at the bottoms of the main box body, an inlet box and an outlet box, and are provided with a plurality of operating platforms through sliding roller wheels; each operating platform comprises a support, a rotating shaft, a tray and a battery mold, the upper part of the support is provided with the rotating shaft, the upper part of the rotating shaft is provided with the tray, the battery mold is connected to the upper part of the tray in a clamping manner, and the support is connected with the sliding roller wheels; the lower part of the liquid adding pipe is provided with a scale mark. The glove box is simple in structure and convenient to operate, and the one-step feeding quantity can be increased; moreover, the workload of an operator can be alleviated by virtue of the sliding tracks, the weighing steps also can be reduced, and the working efficiency can be improved.