A cursor generation system includes a digital pen and a computer device. The digital pen includes recognition information, a first wireless communication module, and a displacement sensor. The first wireless communication module is for sending a mating request signal, the recognition information, and a displacement information. The computer device includes a cursor application, a processor, a second wireless communication module, and a display. After the second wireless communication module is mated with the first wireless communication module successfully, the second wireless communication module receives the recognition data and the displacement information. The processor executes the cursor application corresponding to the recognition information for registering a vendor-defined usage page related to the digital pen, generating a cursor icon on the display according to the vendor-defined usage page, and reading the displacement information to control the movement of the cursor icon on the display according to the vendor-defined usage page.