Abstract: Local positioning system with only two Geosynchronous satellites can provide not only positioning but also telegram service. In 80 s of 20th century positioning test with two satellites was successfully conducted. In 90 s of 20th century attitude determination using two satellites was also accomplished. A new method of positioning using double satellites and geographic information system （GIS） is presented in this paper. The principle of the method is discussed, and the computer simulation is accomplished. The precision analysis of integrated positioning indicates that the method can improve the positioning precision remarkably. In certain condition, the mean square error can be less than 10 meters.