Battery box structure of battery bicycle

The battery box structure of the battery bicycle comprises a box body, a box cover and a plurality of storage batteries, the bottom face of the box cover protrudes to form a thickening part, an upper shell is installed on the bottom face of the thickening part, a lower shell is installed on the bottom face in the box body, a plurality of partition plates are installed in the upper shell and the lower shell, and the storage batteries are arranged in the partition plates. The interior of the upper shell is divided into a plurality of upper positioning grooves through partition plates, the interior of the lower shell is divided into a plurality of lower positioning grooves through partition plates, the lower ends of the storage batteries are inserted into the lower positioning grooves, the upper ends of the storage batteries are inserted into the upper positioning grooves, a groove is formed in the center of the top face of the box cover, and a fixing mechanism for fixing the box cover to the box body is install