The contemporary development strategy of Russian education puts forward several requirements for the system of additional education for children and teachers engaged in this field. The teacher must have the ability to self-development and self-improvement, be engaged in creative and innovative activities. The authors note that in the current conditions, the teacher must choose the only correct trajectory of professional advancement that will lead to the achievement of the desired results. The individual trajectory of personal and professional development of a teacher can be represented as a trajectory of professional self-development and self-improvement of a teacher of additional education in the course of teacher’s methodological work. The purpose of the current research is to develop, theoretically substantiate, and experimentally test the program for implementing an individual trajectory of personal and professional development of additional education teacher in the course of teacher’s methodological work. Implementation of individual trajectories of personal and professional development of additional education teachers in the educational organization involves the development of a specific action plan of the heads of departments, educational and methodological service of the institution, as well as very additional education teachers. The tasks of the educational and methodical service of an educational organization in this process are aimed at encouraging teachers, attracting them to innovative activities, various types of methodological work, and providing pedagogical and methodological support. The use of individual trajectory of personal and professional development in the course of organizing methodological work in the educational organization of additional education contributes to an increase in the professional competence of teachers as well as the development of their interest in this process.