Voice is a public governance mechanism, and the realization of its' effectiveness is affected by the cost of voice. The construction and popularity of government websites in China provides a new way for citizens to voice, but the government websites' low impact, interactivity and open degree restrict the government websites' role in expression of the citizens' voice. Therefore, to improve the influence, interactivity and information openness of the websites can effectively promote the realization of citizens' voice. This can not only perfect the mechanism of voice, but also has practical signification to the optimization of government websites and restoration of government performance.