The invention discloses a method and device for achieving the connection between an intelligent secret key device and an upper computer Bluetooth, and belongs to the field of information safety. The intelligent secret key device comprises a main control module, an accessory communication module, and a Bluetooth communication module. The main control module builds data connection with an upper computer through the accessory communication module, detects the accessory communication module, and obtains an instruction for obtaining a Bluetooth address from the upper computer. The main control module enables the Bluetooth address to be transmitted to the upper computer through the accessory communication module, and builds Bluetooth connection with the upper computer. The main control module detects the Bluetooth communication module, obtains a Bluetooth communication instruction from the upper computer, processes the Bluetooth communication instruction, and transmits a processing result to the upper computer through the Bluetooth communication module. Through the above method, the intelligent secret key device receives the instruction sent by the upper computer, and transmits the Bluetooth address to the upper computer through the accessory communication module. The method avoids a process of Bluetooth searching, achieves a purpose of quickly and safely pairing, and facilitates the Bluetooth connection of the intelligent secret key device with the upper computer.