The invention discloses a membrane supplying system and method. The membrane supplying system comprises a membrane separating device, a first vision device, a robot and a second vision device, whereinthe membrane separating device is suitable for separating membranes from at least one pile of membranes; the first vision device is used for recognizing the separated membranes and the positions of the membranes; the robot is suitable for picking up the separated membranes under vision guiding of the first vision device; and the second vision device is used for checking whether the membranes picked up by the robot are single membranes or not. In the membrane supplying system and method, the membrane separating device can separate the membranes piece by piece from one pile of membranes by sweeping the tops of one pile of membranes, and therefore the separating efficiency and quality of the membranes in piles are improved.