The application of artificial intelligence in the judicial field has significantly improved the efficiency and fairness of trials. The People's Court of Kunshan City, Jiangsu Province, used the "future judge assistant" system to quickly generate judgments through big data and Internet technology, saving judges' working time. Artificial intelligence assisted systems can organize and summarize massive case data, establish judgment standards and information databases for similar cases, and provide case retrieval and push services for judges. In addition, artificial intelligence can help alleviate the problem of too many people in court cases and improve the efficiency of case handling. In December 2022, the Supreme People's Court of China issued guidance emphasizing that artificial intelligence should follow the principle of auxiliary trial in judicial applications. Internationally, artificial intelligence technology is widely used in legal search systems in the United States and Japan, such as the Westlaw system and Japan's information research institute search software. Some countries have also developed legal artificial intelligence systems with higher levels of intelligence, which can simulate legal professional thinking and provide judges with predictions and references for judgment results. Although artificial intelligence has improved judicial efficiency, the ultimate judicial power is still exercised by judges, ensuring that judicial responsibility is borne by the adjudicators.