Multimedia player terminal, authentication method, authentication system and server thereof

An embodiment of the invention discloses a multimedia player terminal, an authentication method, an authentication system and a server thereof. The authentication method of the multimedia player terminal includes that the multimedia player terminal acquires an authentication message sent from a multimedia player client side matched with the multimedia player terminal, and the authentication message includes an authentication character string; the multimedia player terminal processes the authentication character string according to the preset authentication information to acquire a first authentication code; the multimedia player terminal feeds the process result to the multimedia play client side so that the multimedia play client side performs equipment authentication on the multimedia player terminal according to the process result, wherein the process result includes the first authentication code. By the authentication method, the multimedia play client side can perform equipment authentication on the multimedia player terminal, so that the multimedia player terminal which is authenticated normally can be identified effectively.