The invention relates to a power coordinated control method and device for an LCC-VSC direct current transmission system, and belongs to the technical field of direct current transmission. When one pole of a VSC end converter station in an active power control mode is stopped and the other pole of the VSC end converter station is in a bipolar active power control mode, the active power reference value of the pole is correspondingly adjusted according to the bipolar active power control mode; when the other pole of the VSC converter station is in a unipolar active power control mode, the activepower reference value of the pole is unchanged; when the control mode of an LCC converter station is a bipolar active power control mode and is forcibly switched into a unipolar active power controlmode, the active power reference value of each pole of the LCC end converter station is correspondingly adjusted according to the unipolar active power control mode; and the VSC end converter stationin a direct-current voltage control mode adaptively adjusts the active power. According to the invention, the active power of the LCC-VSC direct current transmission system is ensured to be stable when one pole of the VSC end converter station in the active power control mode is stopped, and the problem of active power fluctuation is avoided.