Abstract:The QJ series of self-selected Morchella cultivars were used as experimental materials to clarify the nutritional characteristics of amino acids by detecting the composition and content of amino acids in the fruiting bodies of Morchella.The amino acids were comprehensively evaluated using the Food and Agriculture Organization of the United Nations（FAO）/World Health Organization（WHO）standard pattern spectrum，hierarchical cluster analysis and principal component analysis. The results showed that the QJ series of Morchella cultivars had abundant amino acids and complete essential amino acids in general. The evaluation based on standard pattern spectrum showed that QJ-10 and QJ-12 were obviously better than other cultivars，and QJ-9 had the highest nutritional value in terms of essential amino acids among all series. Based onthe cluster analysis，the QJ series of Morchella cultivars were divided into four categories，and the first category，including QJ-3，QJ-6，QJ-8 and QJ-9，had high content of total amino acids and rich delicious amino acids.The results of principal component analysis indicated that the comprehensive score of amino acids of QJ Series was QJ-6、QJ-8、QJ-9、QJ-12、QJ-3、QJ-7、QJ-10、QJ-2 from high to low，among which QJ-6 had the highest score，reaching 0.38. The results of this study further enriched the basic research data of QJ series of Morchella，and provided references for the differentiated development of Morchella cultivars.