The invention discloses a food supply system. The food supply system comprises a food distribution unit and a food taking unit. The food supply system further comprises a cloud server, a food distribution computer and a menu printer; a food variety database, a food material database and a running food distribution analyzing module are stored in the cloud server; the food distribution analyzing module is used for picking from the food variety database and forming a menu; the food distribution computer is connected with the menu printer; the food taking unit comprises a food distribution disk, a quantitative food spoon and assistant visual identifying logos used for classifying the food variety; food lattices corresponding to the classified food varieties are arranged on the food distribution disk, and the assistant identifying logos are arranged on the food lattices. Through the food distribution analyzing module, the food variety database and the food material database are analyzed, food varieties in accordance with requirements are picked to form a menu, thus user can be conveniently and rapidly find out the food variety which accords with the food requirement of a human body; the diversification, nutrification and scientization of people's food can be satisfied; besides, the food supply system prevents the health problem caused by overnutrition and undernutrition.