Abstract: A system for assembling molded products wherein two or more products molded by an injection machine are assembled with each other with a reduced space required for taking them out from the injection molding machine and then assembling them together while a cycle time for each injection molding operation is shortened. After completion of the upper and lower shell halves, the shell halves molded in the die are dropped and assembled along two or more grooves by an ejection operation of molding machine. After that, the assembled products are conveyed to the outside by driving a conveying unit arranged in a bed.