Abstract: Base on the data on Sina weibo, the paper uses empirical methods to analyze micro-blog users' concerned behavior, comments behavior and forwarding behavior, and describes the state of micro-blog overall user behavior in detail, and has a basic understanding for its static behavior. Micro-blog is a directed network with resource-rich and more nodes, more users release information by computers and mobile terminals, and mobiles become more and more popular; the number is bigger in economically developed regions compared with the developing areas; the user's information is self-centered, and the users often publish the information about themselves or what they are interested in. The network of users' concerned behavior, comments behavior and forwarding behavior is less dense as a whole, but partially it tends to gather.