In a transfer system used for transferring articles that are conveyed on a main conveying path to branching conveying paths, change-over guiding sections of change-over units have an upper guiding body and a lower guiding body and the change-over action of the upper guiding body is caused by the motion force of an article side-push body in the direction of a main conveying path, and the change-over action of the lower guiding body is caused integrally in the second half of this change-over action. As a result, a sufficient change-over guiding length in the change-over unit can be ensured and change-over can be performed smoothly via both guiding bodies at all times.