A lottery distributing system is mounted at the front end of a lottery automatic packaging production line, includes a roller conveyor, a support dividing line component, a support plate extraction-storage component, a line dividing stack component and a stack dividing book component. After lotteries are cut, the lotteries are placed on a support plate in an n*m manner, wherein n refers to row andm refers to line, and the lottery stacking height can be freely set; the support plate is manually pushed onto the roller conveyor; the support dividing line component includes a wide-width pallet conveyor, a movable push plate, a fixed baffle, a narrow-width pallet conveyor and a rack; the support plate extraction-storage component includes a clamping claw, a plate extraction mechanism, a lifting platform and a rack; the line dividing stack component includes a belt conveyor, a pushing module and a rack; the stack dividing book component includes a feeding belt conveyor, a feeding module A,a scraper blade belt conveyor A, lifting module A, a discharging belt conveyor, a movable baffle, a feeding module B, a scraper blade belt conveyor B, a lifting module B and a rack.