The invention discloses an adjustable multi-stage fruit sorting device. The adjustable multi-stage fruit sorting device comprises a bottom plate, a sorting box, a supporting rod, a motor, a disc, a connection rod, first buffer plates, first buffer springs, a sorting pipeline, an air pump, an air escape valve, second buffer plates and collecting frames. The adjustable multi-stage fruit sorting device is provided with the supporting rod, the motor, the disc and the connection rod, the motor drives the disc to rotate, the disc drives the sorting box to continuously swing around the top end of thesupporting rod through the connection rod, accordingly, fruits can continuously roll down advantageously, the sorting speed is advantageously increased, and the sorting efficiency is improved; the adjustable multi-stage fruit sorting device is provided with the air pump, the sorting pipeline and the air escape valve, sorting branch pipes can be subjected to air inflation or air escape through theair pump and the air escape valve, accordingly, the gap between every two adjacent sorting branch pipes can be adjusted, and the adjustable multi-stage fruit sorting device can sort different fruitsand is high in applicability; and the adjustable multi-stage fruit sorting device is provided with the an exhaust fan and a compact mesh bag, the exhaust fan works, and leaves in the fruits can be sucked into the compact mesh bag.