For the implementation of the“water conservancy project to repair short，strong water conservancy industry regulation”total tone water conservancy reform and development in the new period，strengthen the Xinjiang ecological flow regulation， focus on the current ecological environment water demand， water， selection of Xinjiang river downstream of the control station may harbor station as the research object，this paper adopted three methods to calculate， the comprehensive ecological flow is determined， and satisfaction on the ecological flow analysis， the results show that the minimum ecological flow of less than 10%for many years the average flow rate calculated result is reasonable and meets the demands on river ecological flow target.