Active air-inlet grille

The invention discloses an active air-inlet grille. The active air-inlet grille comprises a grille frame, a plurality of driving grating blades and driven grating blades are vertically and rotationally connected between the upper row and the lower row of the air inlets in the two sides of the grating frame; the driving grating blades are controlled to rotate through a driving device, and the driving grating blades drive the driven grating blades to rotate synchronously through a transmission device. And the vehicle-mounted ECU is in data connection with the driving device for control. When an automobile runs, a vehicle-mounted ECU controls the driving device through a preset control strategy according to the working condition of the whole automobile, and under the driving of the driving device, the grid blades are driven to turn over to reach a preset angle, so that the grid blades are driven to rotate synchronously. The driven grille blades are driven by the transmission device to turn over synchronously, th