The invention relates to the technology of electric energy supplementing systems of electric automobiles, in particular to a quick battery charging and replacing station for an electric automobile. The station comprises a frame, a battery box internally provided with a plurality of power batteries and a charging device arranged on the frame and used for charging the power batteries. When the battery box provides electric energy for the electric automobile, a series-connection circuit movable board is driven by a first driving device, a battery series-connection block is connected with a binding post, and the power batteries are connected in series to supply power. When the battery box is in the charging state, the first driving device drives the series-connection circuit movable board to be far away from the binding post, the battery series-connection block is separated from the binding post, the power batteries are not connected, and the charging device charges the corresponding power batteries independently. The battery charging and replacing station is convenient, quick and accurate to operate when the battery box of the electric automobile is replaced. A battery management system is not required in the charging process, independent charging of each power battery can be achieved, each power battery can be fully charged simply and quickly, and the balance efficiency is high.