Physiocheical properties and chemical compositions of two plums(Oishiwase, Formosa ) produced in Kimcheon area were investigated . Chemical compositions of two plum cultivars were similar except nitrogen free extract(NFE) . NFE value of Formosa was higher than Oishiwase . Alcohol insoluble substance content, total soluble pectin, total sugar content and total organic acid content of Oishiwase were 2.08%, 14.16%, 5.07% and 949.16mg%, respectively. In case of Formosa cultivar, those were 50%, 15.42%, 5.91% and 985.91mg%, respectively. Fructose content among free sugars of two plum cultivars range from 3.97-3.45% and the other were glucose, sucrose and inositol, 1.83-1.53%, 0.08-0.05% and 0.04-0.03%, respectively. Malic acid content was 35-373mg% and others were levulinic acid, lactic acid, citric acid, succinic acid and fumaric acid in the decreasing order.