The Internet provides richer sources of information，larger social network，more equalized channel of participation，and more influential participation mechanism for citizens to participate in state governance. It promotes deliberative democracy and participatory democracy in practice. Based on national survey，we analyzed the progress，causes and consequences of Internet-based political participation in cyber space. With the expansion of Internet in China，the society prepared well for precondition of online participation online. There exist various forms for online participation in current China，such as the acquisition of online political information，by-standing participation，action-oriented participation，social media involvement，and official-platform participation. Statistical analysis shows that the demographic variables such as gender，age，education，and the political related variables such as party membership，going abroad experience，regional Internet penetrability influence the preference of participation forms. To be concluded，the Internet helps citizens to build the orientation of digital democracy，and promotes the citizen participation in state governance furtherly.