The article deals with the issues of administrative proceedings in Roman law. Its beginning was laid in the 5th century BC by the laws of ХII tables. They briefly deal with the issues of legal proceedings, which at that time was called court agreement. Free citizens gathered at the forum (city square), where the plaintiff presented claims to the defendant. In Roman law, the rule was established to make claims through claims, which the magistrate (praetor) had to support. The judges were elected by the people. Gradually, the praetors changed the formulas of claims, which contributed to the development of Roman law. Often they proceeded not from the law, but from the circumstances of the case, therefore they could instruct the judge to consider the case “in good faith.” Gradually, various forms of claims were formed, which contributed to the improvement of administrative proceedings. In Roman law, many concepts were laid that have remained in modern legal proceedings. This is the election and turnover of judges, the necessary defense, the writ of execution and the persons who monitored their execution; jurisdiction; corruption; search procedure; jurisdiction; privilege; appeal against court decisions; requirement for witnesses; consideration of cases by the police; torts; limitation of actions; and some others. This makes the study of Roman justice relevant.