我国法律对产品缺陷的规定过于抽象,使得产品责任制度在司法实践中难以发挥有效救济受害人的作用。在产品缺陷认定中引入推定制度,可以更好地救济受害人,但必须处理好其基础事实和推定事实的逻辑关系,以及推定与证明责任例置的关系。 The provisions of the law of our country on product defects are too abstract, making it difficult for the system of product liability to play an effective relief victim role in judicial practice. The introduction of a presumption system in the determination of product defects can better remedy the victim, but the logical relationship between its basic facts and the presumptive facts must be handled and the relationship between the presumption and the burden of proof should be handled.