These experiments were conducted to find out the possibility of utilizing apricot seed as resources of food protein. The apricot seed contained 23.3% of crude protein. The salt soluble protein of apricot seed was highly dispersible in 0.2M sodium phosphate buffer containing about 0.3M $MgSO_4$, and the extractability of seed protein was about 35%. Major amino acid composition of apricot protein were glutamic acid and aspartic acid. The electrophoretic analysis showed 9 bands in apricot seed protein. Molecular weight for the main protein of the apricot seed separated by 1% SDS polyacrylamide gel electrophoresis was 49,000. Molecular weights of salt soluble protein measured by Sephadex G-200 was 110,000.