An enhanced polyurethane imitated wood comprises a foaming polyurethane base body, wherein a nano-cellulose enhancing body is compounded in the foaming polyurethane base body. Due to the fact that a nano-cellulose enhancing body structure compounded in the foaming polyurethane base body is adopted skillfully, the enhanced polyurethane imitated wood is high in strength, good in heat resistance, strong in molding capacity and high in ratio of strength to weight by enhancing the nano-cellulose enhancing body, and a novel engineering material is simply and effectively formed. In addition, compared with existing polyurethane imitated woods, the mechanical property and the heat resistance are enhanced greatly, the size is stable, the hardness is high, the ageing-resistant performance is good, an application range is effectively widened, and the enhanced polyurethane imitated wood is simple and convenient to manufacture and low in comprehensive cost.