This paper discusses an embedded access platform which based on ARM and Linux operating system. Based on the character and advantage of GPRS, this article advances the solution scheme of the wireless sensor network gateway. Mainly analyzes the software design of the gateway, including the way to realize the connection of GPRS network. And this paper proposed a solution of Data loss which is caused by the different transmitting rates of different protocols. It also describes the structure of the hardware platform and running process, and analyzes the structure of the three layers software system, as well as PPP protocol’s characteristics and transplanting key point. As a result, the wireless data communication link between embedded gateway and GPRS network is set up, and the solution of keeping the gateway on line is proposed.