The invention discloses a bluetooth headset based on the BLE protocol which comprises a first Bluetooth headset body and a second Bluetooth headset body, and the two Bluetooth headset bodies each comprise a main control module, a power module, an audio collecting and processing module, an audio output module, an electrostatic protection module, a classic Bluetooth module and a BLE Bluetooth module, and the power module, the audio collecting and processing module, the audio output module, the electrostatic protection module, the classic Bluetooth module and the BLE Bluetooth module are connected. Wherein the first Bluetooth earphone is in communication connection with a mobile phone through the classic Bluetooth module, and the first Bluetooth earphone is connected with the second Bluetoothearphone through the BLE Bluetooth module. According to the invention, communication transmission between the two Bluetooth headset bodies is carried out through the BLE Bluetooth module; The Bluetooth headset has the advantages that transmission of audio data is achieved, wireless packet loss detection is performed on transmitted audio data packets through the main control module on the Bluetooth headset, data integrity in the transmitted audio data packets is judged, audio playing synchronism is guaranteed, audio data playing effect is greatly improved, and satisfaction degree of users in use is increased.