Under the background of the Mobile Internet Age,location service has been developed rapidly.On the basis of modeling the space-time dimension and the study of users personalized preference combined with the preference of similar user groups,this paper proposes the information selection model of location service and related algorithms.In this model,a spacetime dimensional model is proposed formally to process the information of users personalized location service in the time and spatial dimension.Furthermore,a new user and user group preference modeling method is addressed based on proposed user preference analysis.Finally,experimental results show the effectiveness and feasibility of our given modeling method.