An electronic picture frame and an odor releasing method thereof are provided. The electronic picture frame includes: a picture frame body having a display screen on the picture frame body; an odor releasing device disposed on the picture frame body and configured to release a plurality of different odors; and a processing device connected with the display screen and the odor releasing device, respectively, and configured to acquire material type information of a picture displayed on the display screen (2), and control the odor releasing device to release an odor corresponding to the material type information according to the material type information of the picture.