The invention provides a photosensitive video moving object segmentation method. The photosensitive video moving object segmentation method comprises steps that a novel eight-direction sensitive filter (OSF) is provided, and a contribution value of a neighborhood pixel is calculated from the eight directions of the pixel, and can be used as a local descriptor to measure interblock similarity; for an input original video, a plurality of continuous frames of the video are processed in a segmented manner; the OSF is introduced in a variation model, and a foreground object area is calculated, and therefore a foreground seed point and a background seed point are acquired; the OSF descriptor is used for tracking the object, and is used to update the positions of the seed points, and finally, the OSF is introduced in image cutting, and a foreground object is acquired by adopting the seed point segmentation. The OSF has an illumination constant characteristic quantity, which is used as the local descriptor to be introduced in the segmentation method provided by the invention, and robustness is still provided for a condition, the illumination of which is changed, in a video scene.