The invention provides a direct-current power arrangement method applied to a wind electricity base outward-transmitting system. According to the method, factors such as wind electricity power fluctuation, the adjustment ability and adjustment cost of a direct-current sending and receiving end power grid, the requirement of a direct-current receiving end power grid for direct-current power transmission, and the hours of direct current utilization are considered; direct-current power arrangement considering a plurality of factors in the wind electricity base outward-transmitting system is provided; and provided direct-current power is practically feasible and reasonable.