As the popularity of information networks and the variety of relative service, telecommuting, teleshopping, teleeducating, telemedicining, telegovernment, teleconference, telebank provide in time and in door service. These technologies could release the spatial constrain and make the individuals or corporate proceed any kinds of activities in any places. Therefore the urban activities system face the rapid change. The usage of telematics which is combinated with information and communication technologies, could possibly change the pattern and density of communication, and effect the relationship between time and space, the characteristics of activity, and the spatial development. This paper analyses the possible change of spatial activities and land use pattern, and discuss the changes of the housing and office location choices, the land use patterns and urban structure by the usage of telematics.