The present invention provides a headset, a method for controlling usage of the headset and a terminal. The headset includes a memory configured to store an authentication password; and a usage control unit configured to send, after a connection is established between the headset and a terminal, a request of inputting authentication password to the terminal when the headset is in a protected state, receive an authentication password inputted from the terminal, authenticate the received authentication password using the stored authentication password, and control an execution of a predetermined function of the headset based on an authentication result. The present invention protects the headset by limiting the usage right of the headset, so as to reduce the probability of headset loss.