The invention discloses a shielding device for a front windshield of an electric automobile, which is arranged on an automobile body and comprises a fixing box and guide blocks symmetrically fixed atthe left lower end of the fixing box onwards and backwards, wherein the fixing box is fixed on the roof of the automobile body; the guide blocks are fixed on an A-pillar of the automobile body; a stepping motor is arranged in the lower end of the guide block at the rear side; one side, facing to the middle of the fixing box, of the guide block is provided with a sliding slot; a reciprocating screwrod extending into the fixing box is rotatioanlly arranged in the sliding slot; and a square sliding block sliding in the sliding slot is in threaded connection with the reciprocating screw rod. Theinvention has the following advantages: when parking, canvas and light-shielding cloth can be automatically covered without being taken and taken down and the driving is not hindered; the intelligentdegree is high, shielding device can not only prevent rain and snow, but also prevent dust and insolation.