The invention discloses an automatic punching and bending device for filter element end covers. The automatic punching and bending device comprises a workbench, a portal frame, a first punching module, a lower forming part, a second punching module and a pressing part, wherein the portal frame, the first punching module, the lower forming part, the second punching module and the pressing part areconnected with the workbench; the lower forming part is fixed to the workbench, and a punching groove is formed in the middle of the lower forming part; the pressing part is positioned above the groove wall of the punching groove; the first punching module comprises a first punching head, a forming boss and a first air cylinder, the first punching head is arranged at the lower end of the first punching module, the first air cylinder is fixed to the portal frame, and an annular cutter is arranged at the end, close to a sheet material to be punched, of the punching head; and the second punchingmodule comprises a second punching head and air cylinders driving the second punching head to move downwards, and the second punching head can move to the outer side of the lower forming part and thenare clamped with the lower forming part. According to the automatic punching and bending device, multiple processes of piecing, bending, punching and the like of the filter element end covers are carried out intensively on the device, so that a processing device does not need to be replaced in the processing process of the filter element end covers, and then the processing efficiency is effectively improved.