Abstract:With the rapid development of food industry and the increase in consumer safety awareness, consumers are also paying more and more attention to food quality and safety. Frozen storage is the most common method for long-term storage of food, but there are still some deteriorations in food quality after freezing and thawing, such as the nutrient loss caused by the loss of thawed juice, the serious oxidation of lipids and proteins, and the damage to muscle fiber tissue. Therefore, it is particularly important to seek a new safe and efficient thawing technology. Magnetic nanoparticles assisted heating is a new type of food thawing method, which greatly avoids the conventional problems of traditional thawing and new thawing methods. Magnetic nanoparticle assisted heating is a new thawing method of food, which greatly improved the comment problems in the traditional and new thawing methods, such as serious oxidation and poor sensory performance. The present article reviews the quality deterioration issues in the thawing of food and the application of magnetic nanoparticle-assisted heating in the thawing of fish, in order to provide reference for the application of this technology in food defrosting.