Abstract: In this paper，a self-adaptive genetic algorithm based on the adjustment mechanism of biological incretion is proposed to resolve the issues existing in standard genetic algorithm，such as early mature and slow evolution.This algorithm can full play the role of individual had fine quality，ensure high degree of population diversity and quality，so as to enhance the speed of evolution and avoid the premature.The simulation results have shown that the proposed genetic algorithm has good accuracy of finding optimization method and rapid convergence rate.