The invention discloses a method for automatically identifying a mobile information terminal type, which can automatically identify the type of a mobile information terminal with a built-in Bluetooth module. The link between the type of the mobile information terminal and the address of a built-in Bluetooth device thereof is established, the identification of the type of a user machine is realized by identifying the address of the built-in Bluetooth device, so as to achieve the purpose of automatic identifying of the mobile information terminal type. The invention adopts the address of the Bluetooth device to be served as an identification mark of the type of the mobile information terminal; since the address of each Bluetooth device is unique across the world, no mistakes relating to thetype can take place as long as the type is correctly configured for the first time; the method for automatically identifying the type of the invention is widely and conveniently used and can greatly improve working efficiency and simplify operation, can be especially used for realizing automatic adapting of information when being used for transmitting information to a mobile communication terminal, thus being beneficial to realizing information management and intelligentized application of relevant data.