The commom law system develops into the criterions of the third party of the main beneficiary,reasonable forcast and the forseen,and based on these criterions to define the third party.

• 英美法系专家对第三人侵权责任发展出了主要受益人标准、合理预见标准及已知和已预见第三人标准等诸多认定第三人范围的方法。