Abstract: According to the "14th Five-Year Plan" development plan of Xinjiang power grid, according to the "bottleneck" of power organization in different development stages, the phased networking scheme of flexible DC transmission is studied. According to the typical power demand and DC transmission demand of three large areas in southern Xinjiang, northern Xinjiang, Wuchang and eastern Xinjiang, the "Wusu～Wucaiwan" flexible DC transmission scheme and "Bachu ～ Tianshan Converter Station" flexible DC transmission scheme are proposed respectively. Through simulation verification, the above flexible and direct networking scheme in Xinjiang can effectively reduce the transmission pressure of AC channels, alleviate the risk of limited power transmission between southern and northern Xinjiang, and between southern and northern Xinjiang and eastern Xinjiang, and improve the stability of Xinjiang power grid operation.