The invention provides a collecting device. The device comprises collecting boxes, and each collecting box is provided with an accommodating space and a material inlet communicating with the accommodating space; and each collecting device also comprises collecting plates, the collecting plates comprise material dropping plates, material inlet plates and protection plates, two sides of each material inlet plate are separately connected with one material dropping plate and one protection plate, one material dropping plate and one protection plate separately form an included angle with each corresponding material inlet plate so as to form a slide way above the corresponding material inlet plate, one end of each material inlet plate is close to the material inlet of one corresponding collecting box, the height of one end, close to one corresponding material inlet, of each material inlet plate is lower than that of one end, far away from the corresponding material inlet, of the material inlet plate, and sugarcanes slide along the material dropping plates to the material inlet plates and slide along the slide ways until the sugarcanes enter the collecting boxes through the material inlets. According to the device provided by the invention, the sugarcanes harvested by a harvester can be directly collected through the collecting plates, and the sugarcanes are sent to the collecting boxes without additional trailers or trucks, so that the harvester can perform temporary storage while performing harvesting without affecting turning, thereby reducing the costs; and when the collectingboxes collect the sugarcanes to a certain degree, side plates can be directly rotated to make the sugarcanes taken out from the side, thereby facilitating operation.