The utility model relates to an environment monitoring technology field, concretely relates to environmental monitoring system based on unmanned ship. Transmission signal to mobile station unit of RTKand environment monitor cell was controlled the unmanned ship navigation and is gathered lake environmental information with the realization after the mobile station embedded controller receipt ground -control center of unmanned ship navigated and patrols the signal, when unmanned ship need charge, the charge fixed station embedded controller of signal to fixed station subsystem of ground -control center wireless data transmission, the sub - positioning system information of RTK reference station unit wireless data transmission fixed station of fixed station subsystem flows the station unit so that unmanned ship traveles to the fixed station subsystem to unmanned ship RTK, and the wireless emission unit of charging sends the signal that charges and charges in order realizing to the wireless ground -control center 0 of charging of unmanned ship. The utility model discloses an unmanned ship's navigation of centimetre level and the wireless function of charging provide strong support andguarantee for unmanned ship monitors lake environmental information, have accuracy, high efficiency, reliable advantage.