The invention discloses a Windows form control data capturing method. The method includes the steps of obtaining clinic data of a patient through a specified event and storing the clinic data into a database. The method is suitable for windows software of all C/S structures. As long as a doctor registers information of the patient, a hook can capture the information of the patient and save the information in the specified database. If a program exits, the hook needs to be uninstalled from a process of a windows form control. The method is low in workload, low in cost and high in expansibility,and can be suitable for different types of software in different hospitals.