The Non-isocyanate Polyurethane（NIPU）- Epoxy Resins were prepared by methoxyl PPG cyclic carbonate、diethylenetriamine(DETA) and epoxy resins. The structure of NIPU was confirmed using FT-IR. The microscopic structure of the resins was observed by SEM. The Hardness(pencil) of the coating membrane show up H type. And the coating would not bubbling, discoloring, peeling respectively in the water(96h), gasoline(48h) and salt fog(500h), and it has excellent adhesion for metal substrate.