The disclosure proposes a system and method for assisting a colorblind user. The system comprises: a perspective display device for displaying an electronic image and/or allowing the user to view an actual image through the perspective display device； an image acquisition device for acquiring an electronic image corresponding to an actual image which can be viewed through the perspective device； and a processing system for, when the current processing mode of the system is a first display mode, processing the electronic image acquired by the image acquisition device to obtain a processed electronic image, and superimposing the processed electronic image on an actual image viewed through the perspective display device in a way of being aligned with the actual image and displaying it； wherein the processing the electronic image comprises: conducting an HSV space transformation for a target part in the electronic image corresponding to an area of a color in the actual image which can not be distinguished.
