Users' individual requirement has been increased with the popularity of intelligent terminal. In many scenes, users need to collect and consider much information when they make a choice, then achieve this goal by accessing web services. However, the problem for collecting information is that there are amounts of information, and the information have hidden relations, these factors make users hard to make decisions. In addition, when users search services they have to face the fact that single service always can't satisfy their needs, they need to compose many services to achieve their target. The above two questions had bad effect on users' demands satisfaction, therefore the user-centric intelligent service composition become more important. To solve this problem, we propose a user-centric portal system for mobile information services, it focus on intelligent service composition, and it can help users to find specific target and compose services to achieve the target by using individual information and context data.