Rich guest comments on as a kind of burgeoning medium comment form, it relies on openness and freedom to melt , is personalized move mutual the characteristics such as sex get the solicitude with more and more people, in the aspect of the supervisor of public opinion, it also plays important role. As the one of rich guest of network medium it the criticism speech in comment have with traditional newspaper the characteristic of not same comment. " rich guest China " comment column in rich guest the representative that has typical case in comment, this paper attempts to reach conclusion with more persuasive really certificate analysis method, on the foundation of quantifying analysis and example demonstration for original sample. It is clear that article explain some important concepts first, then according to the reasonability of late demonstration analysis method, carry out the order of specific research again, for " rich guest China " comment the characteristic and proportion that has realistic criticism comment analyse , in which insert with traditional newspaper medium " south metropolis newspaper " with the comparison of other some newspaper samples. This paper attempts to pass through above analysis and demonstration, as rich guest comments on the again medium role location in the aspect of the supervisor of public opinion to go on, preliminary discuss , and then is the following research foundation pave a road , in medium research field, contribution makes meager strength.