The invention discloses a washing machine driver which comprises a motor, a washing shaft, a dehydration shaft sleeve sleeved on the washing shaft and a gear speed reduction mechanism. The washing shaft is coaxially arranged inside a motor rotor of the motor and is fixedly connected with an output gear of the gear speed reduction mechanism; and an input gear shaft of the gear speed reduction mechanism is inserted in a shaft hole of the motor rotor. The input gear shaft of the gear speed reduction mechanism is inserted in the shaft hole of the motor rotor, and thus, the gear speed reduction mechanism and the motor are effectively integrated by the motor rotor serving as a gear holder of the gear speed reduction mechanism, so that the axial size of the washing machine driver is reduced and the washing machine driver has a simple and compact structure and occupies a small space. Moreover, the gear speed reduction mechanism has a large transmission ratio range, and thus, the large reduction ratio output can be implemented.