High molecular weight biodegradable poly(hexane-sebacate) was synthesized by direct polycondensation from sebacic acid and 1,6-hexanediol, the chemical structure was identified by FT-IR and ()~1H-NMR, the intrinsic viscosity was measured by Ubbelohde viscometer, the melting point, glass transition temperature was determined by DSC, and the tensile strength is (23.