Abstract:The fruiting bodies of two Hericium species（H.erinaceus，HE5；H.coralloides，SH2）cultivated in simulated wild conditions in Beijing mountainous area were used as experiment objects.The main nutritional components，polysaccharide，triterpenoids，mineral element content and amino acid composition were analyzed.And the international general evaluation criteria were used to evaluate the nutritional value of protein.The results showed that the two Hericium species were rich in polysaccharide （6.29 %-7.04 %）and triterpenoids（1.84%-2.61%），and the two components were higher in SH2 than that in HE5.The ratio of total essential amino acids to total amino acids in HE5 was 41.34 %，the ratio of essential amino acids to nonessential amino acids was 70.49 % and essential amino acid index （essential amino acid index，EAAI）was 91.31.HE5 was a good protein source.By contrast，the EAAI of SH2 was 80.28，which was an available protein source.Two Hericium species were also rich in mineral elements，especially Zn，Fe and Ca.The results indicated that HE5 can be as an ideal protein with have high nutritional value and SH2 may have high medicinal value with high polysaccharide and triterpenoids，which need to be further studied.