严格产品责任目前在美国绝大多数州里已是公认的法律,然而对其理论基础却没有明确的一致意见。产品责任由于缺少原则基础,给诉讼当事人造成了相当多的不确定因素,在法律划分当事人何时可以利用合同对产品的担保而不追究侵权责任时,尤为明显。但是,如果产品责任的目标是为了补救市场的失败,那么是适用侵权还是合同法的决定完全可以简化, Strict product liability is now generally accepted law in most U.S. states, but there is no clear consensus on its theoretical basis. Due to the lack of principle of product liability, litigation litigants have caused quite a lot of uncertainties, especially when the law classifies the parties when they can use the contractual guarantee for the products without going through the tort liability. However, if the goal of product liability is to remedy the failure of the market then the decision to apply infringement or contract law can be simplified,