Fluorine-modified diisocyanate(FHX) was synthesized from tri-funtional isocyanate(HX) and hydroxyl fluorine compound(FC-10). Fluorine containing polyurethanes were synthesized from FHX, 1,6-hexamethyletynediisocyanate, Poly(buthylene/ethylene adipate) glycol(PBEAG), and 1,4-butanediol(1,4-BD). The thermal property and contact angle of polyurethanes was measured by DSC, TGA, and contact angle meter. Thermal stability of FPUs were decreased with increasing fluorine content, and contact angles were increased with increasing fluorine content.