Objective To investigate the compliance of ketogenic diet in children with refractory epilepsy and its correlation with the curative effect, and to provide support and basis for the implementation and improvement of the long-term management of ketogenic diet in this patient population. MethodsA total of 106 children and their families who were followed up on ketogenic diet in the Department of Pediatrics of Fudan University from March 2019 to January 2022 in the Department of Ketogenic Multidisciplinary Treatment (MDT) were selected by convenience sampling method. General data questionnaire and ketogenic compliance questionnaire were used for investigation and follow-up. ResultsThe mean compliance of ketogenic diet in refractory epilepsy children was (13.27±3.68). The compliance scores of ketogenic children with different therapeutic effects and cognitive functions were significantly different. The compliance score was significantly correlated with the therapeutic effect and cognitive level, that is, the higher the therapeutic effect of ketogenic diet in children with higher compliance score, the better the cognitive improvement. ConclusionThe compliance of ketogenic diet in children with refractory epilepsy needs to be further improved. Improving the compliance of ketogenic diet is of great significance for the efficacy of ketogenic diet. Medical staff should actively develop the corresponding intervention program and follow-up management mode to further improve the treatment compliance of children's families, improve the treatment effect and improve the quality of life of children's families.