The launch of Chat GPT can be described as an upheaving change in the search mode，and it has also triggered the imagination of the future form of legal artificial intelligence. Relying on the two underlying technologies of "natural language processing （NLP）"and"search engine"，the GPT model has created a broad space for the intelligent development of legal consultation， similar case retrieval and legal document writing.At the same time，GPT models also face ethical risks， accuracy risks， and legal liability risks.To apply the new generation of artificial intelligence technology to the legal field，it is necessary to promote its role by improving the construction of the rule system， strengthening legal profsional supervision，and optimizing the construction of GPT models，so as to promote the development of a new generation of legal artificial intelligence in China.