In order to alleviate the congestion economically and effectually under the competitive circumstance of electricity market,an applied method of congestion management,which based on FGR(Flow Gate Rights),has been proposed.The share of line has been used to define the power plant's influence on congestion.The proportional principle has been used to compute local marginal price.Then they are both used to balance the charge of FGR.The ISO(Independent System Operator) will dispatch the system to meet the FGR holders' rights.This method is used to alleviate congestion effectually,activate power plants to take part in scheduling positively,and level off the price.An instance is used to illustrate the feasibility of this method with FGR.