A sheet handling apparatus comprising: a pickup unit which picks up a plurality of sheets loaded in a loading unit; a first determining unit which determines a type or a state of the sheet picked up by the pickup unit; a data collecting unit which collects handling amount data for respective types of the sheets or respective states of the sheets; a second determining unit which determines a distribution destination of the sheet based on the handling amount data for the respective types or the respective states of the sheets which are determined by the first determining unit; a distributing unit which distributes the sheet based on a determination result of the distribution destination of the sheet by the second determining unit; and a stacking unit (46, 45) composed of a plurality of cassettes to stack the distributed sheets, wherein the data collecting unit receives the handling amount data of the respective types or the respective states obtained by external sheet handling from an external apparatus, and characterized in that the second determining unit discriminates a first cassette out of the plurality of cassettes as a collection destination of the sheets of a first type or state of a first handling amount, and discriminates a second cassette out of the plurality of cassettes as a collection destination of the sheets of a second type or state of a second handling amount smaller than the first handling amount, and the distributing unit, based on a discrimination result of the distribution destination of the sheet, distributes the sheet of the first type or state into the first cassette, and distributes the sheet of the second type or state into the second cassette. a pickup unit which picks up a plurality of sheets loaded in a loading unit; a first determining unit which determines a type or a state of the sheet picked up by the pickup unit; a data collecting unit which collects handling amount data for respective types of the sheets or respective states of the sheets; a second determining unit which determines a distribution destination of the sheet based on the handling amount data for the respective types or the respective states of the sheets which are determined by the first determining unit; a distributing unit which distributes the sheet based on a determination result of the distribution destination of the sheet by the second determining unit; and a stacking unit (46, 45) composed of a plurality of cassettes to stack the distributed sheets, wherein the data collecting unit receives the handling amount data of the respective types or the respective states obtained by external sheet handling from an external apparatus, and characterized in that the second determining unit discriminates a first cassette out of the plurality of cassettes as a collection destination of the sheets of a first type or state of a first handling amount, and discriminates a second cassette out of the plurality of cassettes as a collection destination of the sheets of a second type or state of a second handling amount smaller than the first handling amount, and the distributing unit, based on a discrimination result of the distribution destination of the sheet, distributes the sheet of the first type or state into the first cassette, and distributes the sheet of the second type or state into the second cassette.