The article considers the database technology usage for the analysis of the social portrait and collective biography of women appointed to the highest diplomatic positions by the leadership of the newly independent states on the territory of the former USSR between 1991 and 2021. It gives a description of the structure of the prosopographic database developed by the authors, as well as substantiates the completeness and representativeness of its information. The article also analyzes basic features of the social portrait of women diplomats: the dynamics of their number, basic education, career timing, the ratio between career diplomats and political appointees, the geographical distribution of women ambassadors by accreditation states. Comparison of the results of the analysis of the database information with the socio-demographic characteristics of the female ambassadors of the US, Germany and the EU made it possible, on the one hand, to identify general trends (a constant increase in the proportion of career diplomats) and differences (in the localization of ambassadors by accreditation countries). In conclusion, information is summarized on the characteristics of the composition of women diplomats in each of the post-Soviet states: based on the dynamics of the number, socio-demographic and professional characteristics of women holding senior diplomatic positions, three groups of states with different models of gender representation in the diplomatic service are identified.