Introduction. The Covid-19 pandemic has made adjustments to the normal way of life, which have led to changes in both the diet and the activity of not only adults, but also children. This served as the foundation for the exacerbation of eating disorders, including obesity. Nowadays, obesity is a challenge to the health care system, as it leads to various complications of a number of serious diseases. Purpose. To analyze the dynamics of morbidity of obesity among children of Moscow and to assess the impact of the Covid-19 pandemic on it. Material and methods. Authors use methods of mathematical-statistical and empirical analysis and the data from the Federal statistical observation form No. 12 "Information on the number of diseases registered in patients living in the service area of a medical organization" in 2012-2022. Results. Childhood obese morbidity shows a steady downward trend over the period of 2012-2020, but rose in 2021 and 2022. The rise of overall morbidity is noticed among children at the ages of 0-14 in 2021. Besides, within this age group, the morbidity of children aged between 10-14 has a rise in 2022 as well, while for the other ages the morbidity falls in 2022 compared to 2021. The indicators of primary morbidity decreased after a rise in 2021. Conclusion. The dynamics of childhood obese morbidity in Moscow differs from both Russian and worldwide trends, however it is clear that the pandemic has caused a rise of obesity among children of all ages.