Intelligent power-saving method and device for lift

The invention discloses an intelligent power-saving method and an intelligent power-saving device for a lift. The intelligent power-saving method for the lift comprises the following steps: according to the set turn-off time, judging whether the lift is in a standby state based on the intelligent judgment and control technology by detecting the change of current of a main circuit of the lift; and triggering an executing mechanism to switch off the current of the main circuit of the lift after certain time of the standby state of the lift is prolonged so as to realize the function of intelligently switching off a power supply when the lift is in the standby state. The intelligent power-saving device for the lift comprises a main detection module, an intelligent judgment and control module, an executing mechanism module and a man-machine interaction. The intelligent power-saving device for the lift has the characteristics of high degree of safety, simple implementation, obvious energy-saving effect, high reliability, intelligence, long service life and the like.