The invention provides an electric automobile solar charging device, and belongs to the technical field of electric automobile charging equipment. The solar charging device comprises a solar cell panel and a supporting device, wherein the whole supporting device is of a frame type, the longitudinal two sides of the supporting device are of chain structure, the transverse two ends are of rigid structure, half shafts are arranged at four corners of the rigid structure, and hub motors are fixed with the half shafts through bearings correspondingly; a luggage rack at the two sides of the top of avehicle is fixed with annular guide rails through supports, the front ends and the rear ends of upper guide rail grooves and lower guide rail grooves of the annular guide rails are correspondingly connected through two guide rail arc grooves with the same shape to form an oval annular structure, and the notches of the annular guide rails on the two sides are oppositely arranged; and a bluetooth receiver is arranged at the top of the annular guide rails, the bottom surface of the supporting device is provided with a power supply series connection contactor circuit, the output end of the bluetooth receiver is connected with the signal end of a contactor, the output end of the contactor is connected with the hub motors through an electric wire.