Aimed at the contradiction between the ecological operation method which uses flow magnitude as the operation object and the water supply objective, this paper proposed an integrative ecological goals including flow magnitude, frequency, duration and other attribute information.It also designed two ecological operation methods named flow restraint method and the limited water supply method. Results showed that flow restraint method mainly controls flow magnitude, and can't flexibly adjust ecological water supply at dry periods of reservoir, so it has obvious competition with water supply objective.While the limited water supply method can focus on the whole ecological objective by controlling flow magnitude and process to adjust ecological objective, and it has more advantages compared with flow restraint method.Therefore, after the project of emergent transmission of water from Dahuofang reservoir, Biliuhe reservoir should implement the limited water supply ecological operation method.