The rapid development of Artificial Intelligence has brought huge challenges to the traditional legalprofession, subject of liability, causation and other aspects, which has caused the remarkable "law death theory".However, Artificial Narrow Intelligence (ANI) lacks "awareness" and cannot be regarded as a legal subject. Andthe exploration of correlativity based on deep learning cannot replace the important role of F actual Causationand Legal Causation, and cannot shake the foundation of the traditional legal system. Therefore, the functionof Artificial Intelligence technology is always "assistance" and "perfection", rather than "dominance" and"substitution". With the help of Artificial Intelligence, the vitality consumed by traditional legal professions dueto a large number of inefficient work will be liberated, and the traditional system elements such as causation inlaw and the "rational person" model will be further refined. At the same time, the law will also improve relativefairness through the use of Artificial Intelligence. Instead of experiencing "death" under the stimulation ofArtificial Intelligence technology, law will complete self- renovation, which is so-called "regeneration of law".