“事实上的契约关系”是一个在国际范围内争论较大的问题。作者认为,应当将这一问题置于“社会法”这一第三法域来加以认识。随着社会关系被纳入三个层次的调整模式,当事人之间的个别契约只是作为社会关系调整过程中的一个片断而存在。由于当事人之间的协商空间放大大压缩,事实过程也能产生契约关系,触发一种受到社会法保护的法律关系。 “De facto contractual relationship ” is a controversial issue in the international arena. The author believes that this issue should be placed in the third area of ​​“social law” to be recognized. As social relations are integrated into three levels of adjustment, the individual contracts between the parties only exist as part of the social relations process of adjustment. Due to the enlargement and contraction of the negotiation space between the parties, the factual process can also generate contractual relations and trigger a legal relationship protected by social law.