Bluetooth communication system and related Bluetooth device group

The invention relates to a Bluetooth communication system and a related Bluetooth device group. The Bluetooth communication system comprises: a Bluetooth master control device; and a Bluetooth device group including a first member device and a second member device. The Bluetooth master device can control the display device to display a candidate device list, and can display a single device option in the candidate device list to represent the Bluetooth device group, but cannot simultaneously display two device options representing the first member device and the second member device in the candidate device list. The Bluetooth master control device can generate a first secret key according to the instruction of the first member device and the device information of the first member device after receiving a selection instruction issued by a user. The first member device can establish a connection with the Bluetooth master device and generate a second key corresponding to the first key according to device informat