Abstract: Aquatic products are popular for consumers due to the rich nutrition and good taste. However, because the quality evaluation system of our country is not perfect and the techniques are not mature, the quality of aquatic products couldn爷t be evaluated correctly and then the exportation of aquatic products is affected. This article describes the grading factors of aquatic products quality, including appearance, flavor and texture, introduces the sensory evaluation techniques used in current evaluation of aquatic products quality and the research progress of electronic nose, electronic tongue,texture analyzer, near infrared spectrometer and computer vision system used in quality detection of aquatic products. It is aimed at providing technical support for the improving of quality evaluation system and resisting of technical barriers to trade.