The present application relates to the technical field of virtual reality. Disclosed are a wearable display device and a method for adjusting an imaging surface thereof. The motor drive assembly in the wearable display device can control the rotation of motors according to a rotation mode carried in a motor control instruction received by a processor, or adjust the rotation speed of the motors according to a speed control parameter carried in the motor control instruction received by the processor. Moreover, the rotation of the motors can adjust the position of an imaging surface, and a change in the position of the imaging face will change the distance between the imaging surface and a user wearing the wearable display device. Therefore, in addition to being used for watching movies or playing games, the wearable display device can also function as an eye protector, and the wearable display device has abundant functions.