Automobile door and manufacturing method thereof

The invention relates to the technical field of automobile doors, in particular to an automobile door and a manufacturing method thereof.The automobile door comprises an automobile door inner plate, an automobile door outer plate, an inner frame and a window frame reinforcer, the automobile door inner plate is made of sheet molding compound, and the automobile door outer plate is made of high-molecular compound; the window frame reinforcer is bonded and fixed to an upper window frame area of the automobile door inner plate, reinforcing ribs are formed in a lower main body area of the automobile door inner plate, and the inner frame and the automobile door outer plate are sequentially bonded and fixed to the lower main body area from inside to outside; the inner frame comprises a U-shaped beam, a main cross beam and a vehicle door anti-collision beam, the two ends of the main cross beam are welded to the two free ends of the U-shaped beam respectively, and the vehicle door anti-collision beam is obliquely conn