In this article, the author analyzes the main functions of artificial intelligence in courts: such as organizing data, consulting, and forecasting. In addition, this article discusses the principles of applying artificial intelligence in judicial practice from a scientific point of view: such as ethical principles, the principle of respect for human rights, the principle of equality, the principle of data security, the principle of transparency, the principle of user control over artificial intelligence. Along with the above, the author thoroughly studied the effective use of artificial intelligence in the judicial system. In conclusion, the author puts proposals forward for further improvement of the use of artificial intelligence in courts that uniformity of court practice and transparency of court documents will be ensured. For citizens, artificial intelligence will become a quality tool for finding and evaluating the outcome of court proceedings using the latest advances in IT. This allows the plaintiff to predict the likelihood of the success of the application being sued and to make a decision on that basis without going to court.