The utility model discloses an environmental monitoring system based on wire pole, a serial communication port, include a plurality of observation circuits of locating respectively on a plurality of wire poles, and with a plurality of observation circuit wireless connection's first server, first server is a plurality of, still include with a plurality of first server passes through the second server that the net twine is connected, the observation circuit includes: locate the wire pole bottom just is used for gathering the soil sensor of soil quality signal, locates the air matter level sensor that wire pole upper portion just is used for gathering the air quality signal locates the power module that wire pole upper portion just is used for producing the electric energy locates wire pole upper portion just is used for the wireless module of transmitter data, and, with the microcontroller that soil sensor, air matter level sensor, power module, wireless module connect. Because around the mill was located usually to the wire pole, the information of collection also can be more accurate.