The utility model discloses a mechanical control active air inlet grille and an automobile, the air inlet grille comprises a frame which is provided with a driving wheel and an air inlet, fan blades which are rotatably connected in the frame, an
elastic component which is used for providing force for opening the fan blades, and an actuating mechanism which is arranged in the frame, according to the mechanical control active air inlet grille, the fan blades are kept in the
open air inlet state through the elastic assemblies, the mechanical control active air inlet grille is suitable for low-speed heat dissipation, the air speed is high and the
wind power is large at the high speed, air is sucked through the air inlet to serve as power, the action mechanism is pneumatically driven to close the fan blades, and then air resistance is reduced. When the vehicle speed is reduced, the elastic mechanism opens the fan blades to dissipate heat, the structure is simple and durable, the cost is reduced by replacing an original motor with a mechanical structure, and then the competitiveness of the whole vehicle is improved.