The invention provides a terminal pairing method and system. According to the terminal pairing method provided by the invention, safety communication parameters before pairing of data communication channels such as Bluetooth are negotiated through a wireless secure channel, the problem that the interaction and negotiation of the safety communication parameters are carried out for many times in a plaintext form is unsafe when the pairing of the data communication channels is performed between existing terminals is solved; and when the user experience is not influenced, the safety communicationparameters of the data communication channels before pairing are negotiated through the wireless secure channel, the safety of the data communication channels such as Bluetooth is ensured, and the convenience of user use and the satisfaction degree of user experience are improved.