The article presents an analysis of the results of monitoring to determine the need to increase the level of competence of specialists of guardianship and guardianship (OOP) (2020), provided by the Department of State Policy in the field of Protection of Children’s Rights of the Ministry of Education of the Russian Federation. In the context of the constant expansion of the powers of PLO specialists, the importance of special professional and methodological training of specialists of guardianship and guardianship authorities in relation to minors in accordance with the requirements of the professional standard and interdisciplinary competencies is evident. 406 specialists of guardianship and guardianship authorities of 85 subjects of the Russian Federation took part in the study. The analysis of 406 questionnaires of PLO specialists with different work experience in the guardianship and guardianship authorities was carried out. The average age of the PLO specialists who took part in the survey is 40 years. The gender composition of respondents is mainly represented by female specialists (92.2% of women with less than 1 year of work experience and 98.3% with more than 5 years of work experience). Representatives of executive authorities in the field of guardianship and guardianship note the need to update the existing professional standard of a specialist of guardianship and guardianship authorities in accordance with changes in state policy in the field of protection of the rights of minors. The most popular forms of receiving methodological assistance are: participation in training seminars, conferences, round tables, webinars; online consultations with experts. PLO specialists prefer to receive methodological support through telephone consultations, through various Internet resources; in the form of methodological recommendations; supervisors, business games, trainings, advanced training courses. The problem area remains the modern content of training programs, a multidisciplinary approach, and the constant expansion of the competencies necessary for the work of specialists. It is shown that for specialists with different work experience, their own principle of building advanced training programs with different volume and content of training for these categories of specialists should be implemented with the obligatory reliance on the case study.