Introduction: globally there is an increase of Type 1 diabetes among children. Poorly controlled Type1 diabetes is associated with the complication. Knowledge is a crucial factor in maintaining patient glycaemic control and adherence to treatment. Purpose: to explore knowledge and understanding of Type 1 diabetes and its management among children in Saudi Arabia. Methods: 32 semi structured interviews conducted with children and their parents. It was audio recorded and transcribed. The qualitative data was thematically analysed. NVivo 11 software was used to organise transcript. Results: Children and young people know the aggravating factors and the theoretical aspects of T1DM management but fail to adhere to the treatment regimen practically. Children and adolescents preferred school food; however, parents complained about the quality of school food. Conclusion: The study findings indicate a requirement to employ innovative and engaging ways of communicating with children and adolescents concerning the promotion of a positive lifestyle and healthy practices. There is a need for cooperation between schools and health ministries to increase awareness about T1DM management and complications.