A color complementation method for a WOLED display device includes: determining at least two target output brightnesses; measuring and adjusting the WOLED display device by using the at least two target output brightnesses, respectively, to obtain data to be used; wherein the measuring and adjusting includes: allowing an output brightnesses of the WOLED display device to be same as each of the target output brightnesses, and adjusting output brightnesses of sub-pixels and obtaining the output brightnesses of the sub-pixels at a preset chromaticity coordinate as color complementation brightnesses of the sub-pixels; generating, according to the data to be used, correlations between the output brightnesses of the WOLED display device and the color complementation brightnesses of the sub-pixels; according to the correlations, performing color complementation of the WOLED display device.