With the increase of wind power propotion, votage stability issues of wind power must be researched. After establishing the mathematical model of the doubly fed induction generator, combined with the practical mathematical model of zhanjiang in guangdong province,the influnce on static voltage stability of system connected with wind power was simulated and researched. The results show that grid integration of wind power will affect the static voltage stability of system, and the influnce degree of wind power have a great relationship with wind farm grid and wind farm capacity. Key word --Wind power, grid integration of wind power, static voltage stability