Objective To construct a data statistical model for the target value of the proportion of medical service revenue based on data⁃driven perspective, providing theoretical and practical basis for optimizing the income structure and setting the control target values for clinical departments. Methods The control target value for the proportion of medical service revenue of a class Ⅲ level A hospital (the case hospital) in 2023 was determined to be 27% through the expert consultation method. Based on the independently developed operation system, using the completion values of medical service revenue⁃associated indices of each clinical department in the past three years (from 2019 to 2021) as the benchmark, a data statistical model was constructed by applying mathematical statistics and health operation research methods to calculate and formulate the control target value for the proportion of medical service revenue of each clinical department. Results After the implementation of control regimen, the proportion of medical service revenue of the entire case hospital in 2023 was 26.84% (with the year⁃on⁃year increase of 1.63%), and the year⁃on⁃year decline in the proportion of revenue from pharmaceuticals and medical supplies for the same period was 2.70%. In the first half of 2024, the proportion of medical service revenue in the entire hospital rose to 27.70%, reaching the control target value. In 2023, the medical revenue proportion of most key controlled departments failed to reach the theoretical target value, but it revealed an upward trend. Conclusion According to the policies and actual requirements of hospital management, appropriate indicators are selected. Based on historical data analysis, model is established and precise and scientific target values are set. This can effectively increase the proportion of medical service revenue in the department and the entire hospital, thereby promoting the hospital's refined management. 

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