To implements the object of informationize and intelligence management of intelligent grid,the solution of automatic and continuous monitoring of electrical device in power transformer substation is presented.The solution adopted network thermal imaging camera along with omnibearing PTZ set for the surveillance of key position of unattended substation and monitoring of object temperature,analysis and crate report.During operation,the system alert abnormal information offer great help for predict and remedy fault,greatly upgraded the grid management from maintain operation to condition monitoring.