The aim of the current study is exploring the correlation between maladaptive cognitive schemas and anxiety among teenagers with type 1 diabetes. Type 1 diabetes is a chronic condition that requires constant management and lifestyle adjustments. It can lead to increased stress levels and emotional challenges, potentially contributing to anxiety in teenagers. Understanding the relationship between anxiety and maladaptive cognitive schemas can provide insights into the psychological well-being of these individuals. Moreover, integrating psychological factors into diabetes care is essential for a comprehensive and holistic approach. By studying the correlation between anxiety and maladaptive cognitive schemas, healthcare providers can recognize the interconnectedness of physical and mental health. This understanding can lead to multidisciplinary interventions that address both the medical and psychological aspects of type 1 diabetes in teenagers, ultimately improving overall health outcomes. To achieve the purpose of the study, two questionnaires of Schema Questionnaire Short Form (YSQ-S3R) designed by Young and School Anxiety Test by Philips were conducted on 132 teenagers with type 1 diabetes hospitalized in Mother and Child Institute, Chisinau, Republic of Moldova. The results indicate a significant correlation between the early maladaptive schemas, including self-sacrifice, approval seeking/ recognition seeking, unrealistic standards/ hypercriticism and negativity/ passivity and variables of school anxiety, such as general anxiety in school, experiencing social stress, frustration of the need to succeed, fear of self- expression, fear of testing situation, dear of not meeting expectation of others, low physiological resistance, problems and fears in relation with teachers. In conclusion, medical and mental health professionals may find these results helpful for assessment, treatment, and prevention goals in patients with type 1 diabetes.