Large amplitude periodic orbit control of bi-stable energy harvester and the power consumption of controller are studied. The research results show that the different initial velocity of the bi-stable energy harvesting device will show the chaotic orbit and the large amplitude periodic orbit

the effect of harvesting of the large amplitude periodic orbit is better. The intermittent control method can control the bi-stable harvester in a large amplitude period orbit. The parameters of the controller

σ、Kpand Kd

have great effects on the power consumption. On this basis

genetic algorithm（ GA） is employed to optimize parameters of controller. The results of SIMULINK simulation demonstrate that the presented method can reduce the power consumption and improve the energy-harvesting effect of the energy harvester as well.