The embodiment of the invention provides a media player processing and controlling method, a device and a system. The processing method comprises the following steps: the central server receives the search request of the controlling device, and returns search response to the controlling device according to the resource information table, receives the resource request of the selected exhibit device selected by the controlling device, searches the resource information table, determines that the selected media resource corresponding to the selected storage path information is stored in the first MS (Main Storage), and determines a second MS capable of converting media format of the selected media resource into a media format which the display capability of the selected display device supports, so as to enable the selected exhibit device to play the media resource converted from the selected media resource by the second MS. According to the method provided by the invention, the media resource and the converting capability of a plurality of MSs can be coordinated to adapt the display capability of the selected display device, and user experience is increased greatly.