The utility model discloses a separation device for fruits and fallen leaves. The device comprises a fruit collection box and a separation groove formed in the top of the fruit collection box, an installation hole and a sliding groove are sequentially formed in a bottom plate of the separation groove, the installation hole is close to the inlet end, the branch and leaf collecting plate is assembled in the installation hole, a telescopic rod is arranged at the bottom of the branch and leaf collecting plate and can drive the branch and leaf collecting plate to move up and down, and a wind powerdevice is further arranged at the bottom of the separation groove and used for cleaning branches and leaves collected by the branch and leaf collecting plate. A vertical baffle is further arranged inthe separation groove, the bottom of the baffle is connected with a traction rope, and the other end of the traction rope is connected with the balancing weight. According to the separating device, bydesigning the fallen leaf cleaning mechanism composed of the fallen leaf collecting plate, the telescopic rod and the wind power device, scattered branches and fallen leaves falling along with fruitsare cleaned, a fruit grower does not need to additionally clean the fallen leaves, fruit picking procedures are reduced, and the workload of picking work is reduced.