Basing on the questionnaire survey of children’s participation on Internet in 18 cities in China，the author analyzes the situation of children’s participation on Internet in terms of entertainment，social interaction，learning and expression，and summarizes the features of children’s network participation at different ages：kindergarten period （3-6 years） as a small player，primary school period （9-10 years old） as a small user，junior high school period （13-14 years old） as a small creator. While the chance of children’s participation on Internet is continuously expanding，the risks are also increasing，and the three major risks are being unhealthy，unsafe and uncivilized. Basing on the aforementioned analysis，the author puts forward countermeasures to protect child rights for Internet participation yet maintain the safety of children’s Internet participation from the three perspectives of state，society and family.