The invention relates to a food release agent. The food release agent is composed of, by mass, 90% to 97% of first-grade soybean oil, 1% to 5% of phosphatide, 1% to 5% of carnauba wax and 0 to 8% of polyglycerol fatty acid ester. The invention further provides a preparation method of the food release agent. The food release agent is good in stability and release performance and the preparation method is simply and easy to operate.