Abstract: The present invention discloses a method and system for switching an operating state of a robot. The method comprises the following steps of: providing an excitation device for an opening terminal and an excitation device for a closing terminal on a mask of the robot; transmitting, by the excitation device, a mask state signal to a slave computer processor when the mask is opened or closed; by the slave computer processor, processing the received mask state signal and then transmitting the processed mask state signal to a master computer processor; and controlling, by the master computer processor, the switchover of the operating state of the robot according to the received processed mask state signal. With regard to the technical solutions of the present invention, through the opening and closing of a mask, the system of a robot can be in two operating states and perform different functions.