The invention discloses a feeding device for a canister cover pressing working procedure. The feeding device for the canister cover pressing working procedure comprises a workbench. The center of theworkbench is provided with a bottom die and a thin elastic piece. One side of the bottom die is provided with four symmetrical first sliding grooves, and the other side of the bottom die is provided with two symmetric second sliding grooves. The first sliding grooves are internally provided with first rolling devices. The second sliding grooves are internally provided with second rolling devices.The first rolling devices are provided with first fulcrum bars, and the upper ends of the first fulcrum bars are provided with first pressing devices. The second rolling devices are provided with second fulcrum bars, and the upper ends of the second fulcrum bars are provided with second pressing devices. According to the feeding device for the canister cover pressing working procedure, correct positioning is firstly carried out when an iron sheet enters the upper end of the bottom die, and therefore the width of the iron sheet is reduced; and the distance between two times of pressing is judged through the thin elastic sheet, the utilization rate of the iron sheet is higher, the operation level of workers is reduced, meanwhile, during operation, only one hand is needed and is far away fromthe bottom die, potential safety hazards can be effectively eradicated, and the situation that the iron sheet deviates, and consequentially the edge of a canister cover cannot be pressed in place isalso avoided.