The invention relates to a settlement system of an intelligent restaurant based on machine vision. The system is formed by a restaurant intelligent settlement device and a background settlement center platform. A tray is placed on a settlement platform of the restaurant intelligent settlement device. A dining bowl is disposed in the tray. A video file capturing and reading device is fixed on the settlement platform above the region where the dining bowl and round discs of different colors are placed. The background settlement center platform extracts an effective image of a key frame through reading a video stream; subjects the effective image of the key frame to noise removal, gray scale transformation, and fuzzy processing; and through image traversal, uses Hough transform and a fuzzy neural network algorithm to identify a piece of tableware with a specific shape and color, so that the total amount of consumption can be calculated according to a preset price of the tableware and a consumer can swipe a card for consumption according to the prompted total amount of consumption displayed by the interface of the background settlement center platform. As the system does not need to do any improvement of current tableware, later improvement and upgrades are very convenient, and the system is highly economical and practical.