Oil filter is one of the important auxiliary equipment in deep processing of meat and aquatic products. It can be installed on the side of the fryer, and can work synchronously with the fryer. It can effectively filter out particulate impurities, carbides and other harmful substances produced by high-temperature frying oil in the process of frying food by physical methods, improve the frying environment of food, and inhibit the increase of acid value and peroxide value. Improve the utilization rate of food oil, reduce enterprise costs, improve enterprise efficiency and product quality.