The invention discloses a tin foil paper unwinding and feeding device. The tin foil paper unwinding and feeding device comprises an unwinding shaft. A stop mechanism corresponding to the unwinding shaft is mounted on the outer side of the unwinding shaft. At least two vertically-corresponding conveying rollers which are distributed in a spaced mode are arranged on the unwinding shaft in the unwinding output direction, and an elastic ejection mechanism and a meter-counting wheel are mounted between the two adjacent conveying rollers. A pressing workbench is arranged at the discharging ends of the conveying rollers. A movable suction cup feeding mechanism is mounted above the pressing workbench, corresponds to a lower mold body of a blanking mold, is staggered relative to an upper mold bodyand is located below the upper mold body. The suction cup feeding mechanism comprises a movable base which can move back and forth. A suction cup fixing plate which can rise and fall is mounted underthe movable base. Suction cups which are distributed at intervals are mounted at the bottom end of the suction cup fixing plate. The tin foil paper unwinding and feeding device is reasonable in structural design; the unwinding motion of the unwinding shaft can be controlled at any time, so that the conveying stability is ensured, and the blanking quality is ensured; and the labor intensity of workers is low, time and labor are saved, and the requirements for mass machining and production are met.