Anganwadi centres are a component of the 1975-instituted ICDS (Integrated Child Development Services) Scheme. Anganwadi employees are those employed at the village level who provide services under the ICDS Scheme. In accordance with the National Policy for Children, the programme was begun. The largest of India's multifaceted welfare programme, ICDS, aims to help millions of women and children who are suffering from nutritional deficiency illnesses, illiteracy, a lack of understanding and poor knowledge. That is essential in childcare facilities to evaluate development using precise anthropometric indicators (weight, length, and body mass index) the answer with which nutritional status or failure in growth. The primary aim of this study was to assess the knowledge regarding growth monitoring for under five children among Anganwadi workers in selected ICDS centres of Moradabad. To test the Anganwadi workers knowledge with growth monitoring, quantitative research was used in the current research. This study's research design was descriptive research design. In this research, structured knowledge questionnaires were employed as the primary measures to evaluate the knowledge growth monitoring of Anganwadi workers. This study was conducted at selected Anganwadi centre Dist. Moradabad, UP. The study revealed that 15(16.7%) Anganwadi workers have poor knowledge, followed by 58(64.4%) Anganwadi workers have average knowledge and 17(18.9%) Anganwadi workers have good knowledge regarding growth monitoring for under five children. Overall knowledge score, range varies to min 4 to max 26, mean score was 15, median score was 16 and the standard deviation was 5.1.