With the development of internet, the information push method is increasingly being paid more and more attention by the information services. And the information push technology has become a revolutionary information transmitting mode. The appearance of the push method has greatly changed the traditional accesses to information, resulting in a revolutionary high efficiency in obtaining information. This paper mainly introduces the situation of information overload. Then the architecture of the web push scheme is proposed. And several kinds of information push methods are given. At the same time, analyses and evaluates the collaborative filtering algorithm which is the popular information push technology.