Abstract: The compositions and contents of amino acids. fatty acids. proteins and fats in kornel of Carya cathayensis Sarg were determined by amino acid analyzer, gas chromotography and classical methods. It contained 17 sorts of amino acids, accounting for 27. 198(g/100g), 8 sorts of tatty acids, in which oleic acid were 72. 09% in total. The contents of proteins and tats were respectively 28. 1g/100g and 66. 14g/100g.Furthermore nutrient values and medical effects were analyzed and contrasted, it was advanced that Carya cathayensis was a better health food than that of Juglans regia.

Key words: fats proteins fatty acids Amino acids Kernel of Carya cathayensis Sarg.