An anti-falling method during power outage includes: transmitting first controlling signals to a first leg mechanism and a second leg mechanism to control a first leg and a second leg of the robot to be perpendicular to ground upon determining a power outage condition; transmitting second controlling signals to the first leg mechanism and/or the second leg mechanism to control the first leg and/or the second leg of the robot; controlling the first leg and/or the second leg to move the center of gravity of the robot close to the ground; transmitting third controlling signals to the first leg mechanism and the second leg mechanism to stop movements of the first leg mechanism and the second leg mechanism upon determining a stop condition.