This paper designs guard robot alarm system using GPRS technology. An interesting communications infrastructure for remotely accessing is offered based on GPRS, which can control and interact with robots in an integrated and highly portable manner. In recent years the GPRS network provides wireless access of internet for mobile phone which becomes the most important and common terminal equipment. Therefore, the alarm information is designed to send to the user’s mobile phone through GPRS networks, and man-made intervention is added to the system, thus a more reliable and convenient alarm system is implemented. The system mainly consists of two parts: detection of abnormal and dangerous situation in domestic environment and sending the alarm information as MMS form to the user’s phone via GPRS networks.