Objective To revise the Chinese version of the Humpty Dumpty Fall Scale (HDFS), and to evaluate its reliability and validity, so as to provide a fall risk assessment tool for hospitalized children. Methods Based on the Neuman Health System Model, a draft revision was developed through multicenter surveys and literature review, followed by refinement via Delphi expert consultations and pilot testing.By using convenience sampling method, a total of 3,130 hospitalized children aged ＞1 year from five high-risk wards across four tertiary Grade A children′s hospitals and two general hospitals in Jiangsu Province were selected and surveyed using the revised HDFS, so as to test its reliability and validity and determine the optimal high-risk cutoff values and corresponding identification capacity. Results The revised HDFS comprised five items. The inter-rater reliability was 0.935, Cronbach′s α coefficient was 0.677, split-half reliability was 0.698, and content validity index was 0.929. Exploratory factor analysis identified two common factors, namely the internal environment and external environment, contributing to a cumulative variance of 66.387%.Confirmatory factor analysis demonstrated χ2/df=2.206, GFI=0.981, RMSEA=0.080, CFI=0.990.The correlation coefficients with the Morse Fall Scale and the fall risk score of hospitalized children were 0.472 and 0.496, respectively (all P＜0.05).The area under the ROC curve was 0.784, with a cutoff value of 8 points, yielding a sensitivity of 88.90% and specifi-city of 62.70%. Conclusion The revised Chinese version of the HDFS demonstrates good reliability and validity, and it can be used for fall risk screening in hospitalized children aged ＞1 year.