The authors substantiate in the article the urgency of modernizing the system of additional vocational education for social workers. Diversification of education is one of the ways to solve this problem; diversification of education provides a new vector of the development of the system: its flexibility, accessibility, the ability to respond promptly to any changes in the social sphere. Diversification is the principle of innovative structuring of the system of additional vocational education, providing the possibility of variability in educational services and programs, forms, types, technologies of instruction. The authors demonstrate the mechanisms for implementing diversification processes in the context of additional professional education for social workers. The globalization of information technology, the socio-economic transformation of Russian society, the problems of its development require a rethinking of the quality of education that meets national interests, goals and strategies for progress. The problem of improving the quality of education has received a special sound today in connection with the actualization of the task of innovative education, which could provide training for specialists capable of carrying out innovative activities in all spheres of society. The introduction of professional standards of specialists in the social sphere, independent evaluation of qualifications against the backdrop of socioeconomic changes in modern Russia make new demands on the professional level of social workers and the availability of professional competences. The social worker of the new formation must possess a whole range of professional knowledge, skills and skills in the field of social work, innovative technologies of social services for the population, be financially and legally competent, and be sociable, tactful, diplomatic, empathetic, etc. [Lomakina 2001]. The current state of Russian education confirms the dependence of the structure and functioning of this social institution on the conditions of the socio-cultural and political environment. State policy and the management process in the field of education are closely related to modern Russian modernization processes that have revealed crisis phenomena in Russian society, affected virtually all spheres of public life, and have and continue to have a serious impact on the functioning of the main sociopolitical institutions.