This thesis is dedicated to combine the GSM communication systems and Global Positioning Systems. Because GSM containing rate in Taiwan is more than 95%, data transmission technology can meet highly stable and reliable requirement of communication monitoring systems. It is indispensable in this system that GPS can obtain the accurate coordinate. There are still many technical developments in different aspects of the integrated systems in the future.In this paper, a microprocessor is applied to design the controller circuit in Automobile Electronics application, and to complete the system by combining different interfaces. Another hope is to provide the systematic structure for researchers in the future.