The main purpose of the work is to analyze and compare article 285 of the Criminal Code of the Russian Federation of 1996 and article 365 of the Criminal Code of the Republic of Angola of 2019 regarding the establishment of liability for abuse of power, taking into account the modernization of the criminal law system of Angola. To achieve this goal, a comparative analysis of the composition of abuse of official authority and related criminal offences in the Criminal Code of the Russian Federation and Angola was carried out, the features of objective and subjective elements of the crime were identified, and similarities and differences were determined. On the basis of a comparative analysis of the criminal legislation of the Russian Federation and Angola, the conclusion is justified that the system of official crimes should be improved and the composition of abuse of power in the Criminal Code of Angola should be modernized accordingly.