Purpose: Based on the analysis of legal acts and work of other researchers, a historical and legal analysis of the security measures organization was done for trading ports of the Black Sea region of Russia in the 19th and early 20th centuries in this paper. Methodology: This study was based on a dialectical approach to studying the legal phenomena and processes by using general scientific (system, logical, analysis and synthesis) and private scientific methods. Result: The following main components of the legal organization of security measures that are complex in nature: quarantine service; customs; pilot organizations; and port controls. The quarantine and customs authorities included quarantine and, accordingly, border guards. The tasks faced by these bodies were of anti-epidemiological measures nature, i.e. the prevention and detection of offenses with an economic, social and political persuasion. Applications: This research can be used for businessmen and students in economy. Novelty/Originality: In this research, the model of sales ports safety measures in the black sea region of Russia in the 19th and early 20th centuries is presented in a comprehensive and complete manner.