Abstract:Hydrological informatization platform is being developed rapidly. However, the hydrological information has the characteristics of wide-source and abundant-type. It is difficult for users to find the hydrological information quickly when facing a great deal of complicated and complex hydrological information. Through the method of hydrological information visualization, the hydrological data is transformed into a visual form that can be intuitively understood by users. In addition, personalized maps are customized and different user interface styles are designed. In order to solve the visual confusion caused by a large number of hydrological information visualization, the recommendation algorithm based on user model matching is suggested to the hydrological situation sites, realizing filter of hydrological information and focusing on the recommendation sites visualition. Meanwhile, the user model matching recommendation algorithm based on probability is adopted to supply different users with personalized hydrological information visualization interface, which can further enhance the effect of personalized display