The article provides an analytical review of information technology used in legal activities. Information systems that form a practical basis for the use of information technology, the author is classified as follows: information and reference systems; information and logic systems; automated workplaces; expert systems. The author proves that the use of these technologies allows to solve a lot of current problems, speed up the collection and retrieval of information, store large data sets, conduct examinations and analysis of statistical information, thereby increasing the efficiency of the legal process.