The invention discloses a conveyor system with the automatic box arrangement function. The system comprises a belt conveyor, a first shaping conveyor, a second shaping conveyor, a third shaping conveyor, a fourth shaping conveyor and a side-step conveyor; the first shaping conveyor, the second shaping conveyor, the third shaping conveyor and the fourth shaping conveyor are consistent in mechanical structure, running action and conveying principle; a conveying belt is arranged on the conveying face of the belt conveyor, a first tail roller is arranged on one side of the belt conveyor; the differences of the conveying speeds of the first shaping conveyor, the second shaping conveyor, the third shaping conveyor and the fourth shaping conveyor and the guide effect of single-side powerless galvanized drums on the first shaping conveyor, the second shaping conveyor, the third shaping conveyor and the fourth shaping conveyor are used for achieving automatic arrangement, sorting and object conveying direction unifying of cartons and circulation boxes, and the system is simple in structure, advanced in function and high in automation degree.