Objective: The aim of this study is to determine the predictive validity of the Humpty Dumpty and BUÇH scales in the assessment of the fall risk of child patients. Methods: This methodological study was carried out between October 2016 and April 2017 in all the inpatient wards of a child hospital in Ankara except for its intensive care unit and emergency services. Its sampling consisted of children aged 0-18 receiving inpatient treatment. The data of 200 patients who met the inclusion criteria and had not a fall incident was obtained prospectively between October 2016 and April 2017 and the data of 16 patients who had a history of fall incident between 2014 and 2015 were obtained retrospectively. The data were collected through the BUÇH and Humpty Dumpty fall risk assessment scales. The predictive validity of both scales was assessed based on sensitivity, specificity, positive predictive value, negative predictive value, and the area values under ROC curve.