A system for feeding diaphragm, characterized in that the system for feeding diaphragm comprises: a diaphragm separating device adapted to separate a single diaphragm from at least one stack of diaphragms; wherein, the diaphragm separating device comprises: a diaphragm bin adapted to load at least one stack of diaphragms; and at least one set of diaphragm sweeping mechanism adapted to sweep a top of at least one stack of diaphragms, in order to separate a single diaphragm from the top of at least one stack of diaphragms; wherein, each set of diaphragm sweeping mechanism comprises: a support frame (121, 122, 123) adapted to move reciprocally in a straight line; and a sweeping brush mounted on the support frame (121, 122, 123) and adapted to move reciprocally along with the support frame (121, 122, 123), when the sweeping brush moves reciprocally along with the support frame (121, 122, 123), the sweeping brush sweeps the top of at least one stack of diaphragms, in order to separate the single diaphragm from the top of at least one stack of diaphragms; and a visual device adapted to identify the separated single diaphragm and the position of the separated single diaphragm; characterized in that a pair of sliding rails (130, 130) extending in a straight line is provided at both sides of the diaphragm bin, the support frame (121, 122, 123) being slidably installed on the pair of sliding rails (130, 130) in order to move reciprocally along the pair of sliding rails (130, 130). a diaphragm separating device adapted to separate a single diaphragm from at least one stack of diaphragms; wherein, the diaphragm separating device comprises: a diaphragm bin adapted to load at least one stack of diaphragms; and at least one set of diaphragm sweeping mechanism adapted to sweep a top of at least one stack of diaphragms, in order to separate a single diaphragm from the top of at least one stack of diaphragms; a diaphragm bin adapted to load at least one stack of diaphragms; and at least one set of diaphragm sweeping mechanism adapted to sweep a top of at least one stack of diaphragms, in order to separate a single diaphragm from the top of at least one stack of diaphragms; wherein, each set of diaphragm sweeping mechanism comprises: a support frame (121, 122, 123) adapted to move reciprocally in a straight line; and a sweeping brush mounted on the support frame (121, 122, 123) and adapted to move reciprocally along with the support frame (121, 122, 123), a support frame (121, 122, 123) adapted to move reciprocally in a straight line; and a sweeping brush mounted on the support frame (121, 122, 123) and adapted to move reciprocally along with the support frame (121, 122, 123), when the sweeping brush moves reciprocally along with the support frame (121, 122, 123), the sweeping brush sweeps the top of at least one stack of diaphragms, in order to separate the single diaphragm from the top of at least one stack of diaphragms; and a visual device adapted to identify the separated single diaphragm and the position of the separated single diaphragm; characterized in that a pair of sliding rails (130, 130) extending in a straight line is provided at both sides of the diaphragm bin, the support frame (121, 122, 123) being slidably installed on the pair of sliding rails (130, 130) in order to move reciprocally along the pair of sliding rails (130, 130).