A method for providing presence information is applied to a presence system, that includes a presentity, a presence server and at least one watcher. The method includes that in the presence server setting separately the value corresponding to the watcher's attributes for the same presence information provided by the presentity. The presence server provides the corresponding value of the presence information according to the watcher's attributes. Accordingly, there is also a system for providing presence information and the presence server thereof. The invention can provide the corresponding value of the presence information according to the different watchers.