A sheet delivery system for continuously delivering a sheet, the sheet delivery system comprising: a roll holding unit which holds a plurality of original material rolls (R1, R2), each formed by winding a sheet, in a state where delivery of the sheet is allowed; a joining unit which joins, to an intermediate section of a sheet being delivered from a delivery-side original material roll among the plurality of original material rolls (R1, R2) held by the roll holding unit, an end section of a sheet of a standby-side original material roll that is a roll other than the delivery-side original material roll among the plurality of original material rolls (R1, R2) held by the roll holding unit; an end section detector which detects a position of the end section of the sheet of the standby-side original material roll; an end section conveying apparatus which holds the end section of the sheet of the standby-side original material roll and which conveys the end section of the sheet to the joining unit; an original material roll driving unit which rotationally drives the standby-side original material roll around a central axis thereof; and at least one suction roller which is configured to come into rolling contact with an outer peripheral surface of the standby-side original material roll in accordance with the standby-side original material roll being rotationally driven, and which includes an outer peripheral surface configured to suction the end section of the sheet in order to separate the end section of the sheet from the standby-side original material roll, characterised in that the end section detector is attached at a position which enables detection of the end section of the sheet separated from the standby-side original material roll by the at least one suction roller. a roll holding unit which holds a plurality of original material rolls (R1, R2), each formed by winding a sheet, in a state where delivery of the sheet is allowed; a joining unit which joins, to an intermediate section of a sheet being delivered from a delivery-side original material roll among the plurality of original material rolls (R1, R2) held by the roll holding unit, an end section of a sheet of a standby-side original material roll that is a roll other than the delivery-side original material roll among the plurality of original material rolls (R1, R2) held by the roll holding unit; an end section detector which detects a position of the end section of the sheet of the standby-side original material roll; an end section conveying apparatus which holds the end section of the sheet of the standby-side original material roll and which conveys the end section of the sheet to the joining unit; an original material roll driving unit which rotationally drives the standby-side original material roll around a central axis thereof; and at least one suction roller which is configured to come into rolling contact with an outer peripheral surface of the standby-side original material roll in accordance with the standby-side original material roll being rotationally driven, and which includes an outer peripheral surface configured to suction the end section of the sheet in order to separate the end section of the sheet from the standby-side original material roll, characterised in that the end section detector is attached at a position which enables detection of the end section of the sheet separated from the standby-side original material roll by the at least one suction roller.