我国大陆地区现有的关于情势变更原则的研究成果，绝大多数在基本内容上相互重复，它们不仅还基本上是停留在台湾学者史尚宽先生在五十年代就已经取得的相应研究成果的理论水平上，且存在于其中的某些学术观点还是错误的。这些研究成果均未揭示各国法律中的这一原则在内容上的差异：有的既授予一方当事人合同变更权又授予其合同解除权，有的则仅授予其这两种权利中的一种；对于这两种权利有的规定当事人只能通过司法程序行使，有的则规定其可以直接行使。这些研究成果并未涉及对这一原则中的合同变更权的专门研究，但这一权利却对大陆法系合同法理论的科学性提出了挑战 The vast majority of the research results on the principle of situational change in the Mainland of China are overlapping with each other in their basic content. They not only basically remain in the theoretical level of the corresponding research results that were obtained by the Taiwan scholar Shi Shangkuan in the 1950s Some of the academic ideas that exist in it are still wrong. Neither of these research results reveals the differences in content of this principle in the laws of various countries: some give both parties the right of contract modification and the right of contract dismissal, while others grant only one of these two rights; Some provisions on these two rights can only be exercised through judicial proceedings, while others provide that they can be directly exercised. These findings do not address the specific study of the contractual right to change in this principle, but this right poses a challenge to the scientific nature of the law of contract law in continental law