Abstract: In order to study the effect of different reheating methods on the quality of prepared dishes of braised white shrimp, microwave, steam and water bath were used to reheat frozen stored and braised white shrimp prepared dishes. The optimum reheating method was determined by measuring the water content, water activity, texture, sensory quality, free amino acids, flavorable nucleotides, volatile components and microstructure of the product after reheating. The results demonstrated that, in comparison to the other two methods, microwave reheating had the least negative impact on the product quality, with the least amount of moisture lost (4.00%), least amount of water activity lost (1.00%), least amount of hardness increase (6.44%), least amount of chewiness increase (1.00%), and elasticity decrease (2.03%). In terms of flavor, the flavor scores of the microwave reheating group were closest to those of the control group. The total amount of free amino acids increased significantly by 2.78% in the microwave reheating group while it decreased in the steam and water bath reheating groups. Microwave, steam, and water bath reheating groups detected 69, 61, and 64 volatile substances respectively. The microwave reheating group had a higher relative content of aldehydes (33.81%) compared to the steam reheating group (29.98%) and the water bath reheating group (29.15%); additionally, the microwave reheating group had higher levels of adenine nucleotide and inosine monophosphate than the other reheating groups, and a higher combined monosodium glutamate content. It was evident that the products of the microwave reheating group had greater equivalent umami concentration when combined with the taste activity value and equivalent umami concentration. The advantages in the microwave reheating group had smoother fiber bundles and better muscle tissue arrangement than those in the other two reheating procedures. When all the signs are taken into account, microwave warming proves to be a more suitable way of reheating braised South American white shrimp prepared dishes.