Disclosed is a mura detection apparatus and method of a display device. The mura detection method includes analyzing image information acquired from a test image displayed by a display panel to detect a plurality of mura candidate areas, extracting feature information and position information of the mura candidate areas, removing non-mura according to the features of the mura candidate areas, detecting white spot mura and black spot mura on the basis of the feature information of the mura candidate areas, detecting black-and-white spot mura on the basis of the position information of the mura candidate areas, and detecting the white spot mura, the black spot mura, and the black-and-white spot mura as final mura to classify a kind, size, and position of the final mura.