A data processing system and method integrated with positioning technology are provided. A plurality of mobile devices perform data processing on positioning signals received from a positioning device. The mobile devices together form at least a communication group. One of the mobile devices receives coordinate information from the other one or more of the plurality of mobile devices of the at least a communication group via a wireless signal transceiver module. A data computation module performs computation on the coordinate information to obtain group information, and transmits the group information via the wireless signal transceiver module such that all of the plurality of mobile devices of the at least a communication group are allowed to obtain the group information. Known problems, that is, conventional mobile devices fail to receive coordinate information from one another and thereby fail to interact with one another, are solved by the system and method.