Abstract: Fish is not resistant to storage and easy to rotten.Freshness is one of the most important indicators for fish and other fish products.The demand of freshness for fish and fish products in modern food industry is becoming higher and higher, and the establishment of the method used for rapid detection of fish freshness is meaningful to the scientific value and the practical significance.In this paper, the differences and similarities between several rapid detection methods including electronic nose and electronic tongue technique, biosensor technique, biological resistance method and near infrared spectrum technique were given to use for fish freshness. At the end of this paper, the fish freshness determination detection was discussed about the future trends.