According to the existing box-type substation online monitoring uses cable way, Arrangement Of Wire is difficulty and costs high, Designed a kind of intelligent box-type substation wireless sensor network monitoring system based on ZigBee technology.Introduced the structure and principle of the system , the scheme of hardware circuit and software for wireless communication technology are given,realized intelligent box-type substation electrical equipment operating parameters acquisiting and remote monitoring combined with GPRS technology. The wireless network monitoring system has the advantages of high reliability , low cost , Portability Strong and has a broad application value.