Method for separately accessing virtual USB (Universal Serial Bus) peripherals on terminal server by multiple users

The invention provides a method for separately accessing virtual USB (Universal Serial Bus) peripherals on a terminal server by multiple users. The method comprises the following steps of: constructing a USB peripheral monitoring module, a virtual desktop monitoring module, a virtual device list module, a finding/opening USB peripheral interception module and a processing module in the terminal server; with cooperation of the modules, judging whether the virtual USB peripherals to be found or opened by a current user belong to the current user, if so, allowing the user to operate the USB peripherals, and if not, forbidding the user from operating the USB peripherals. According to the method disclosed by the invention, the virtual USB peripheral which belong to respective user can be isolated when the terminal server has USB peripheral connection of multi-users, and therefore the security of virtual USB peripherals of each user in the terminal server.