Abstract: In order to realize gathering the urban components information fast, accurately and intelligently, a information acquisition collector integrating the inside and outside urban components was developed based on GPS, GIS and PDA. The technology of CORS, principle of distance intersection, theory of map roaming and database for urban components acquisition was investigated based on the integrated method in software design field. Firstly, we introduce CORS and the laser ranging technology in this paper. Secondly, by based on PDA pattern elaborate the basic principle and function of the collector. Then, analyze the key technologies, using CORS as the main mode, laser ranging intersection as auxiliary mode to determine the components spatial positions as well as the attribute data based on mobile GIS. Finally, introduce the development and test procedure of the device. Experiment shows that the accuracy of the poisoning results of urban components is about 20 cm, which meets the specification. Solve the problem of GPS positioning at the case of no signal.