Method and device for synchronizing data and time between Bluetooth audio equipment

The invention relates to a method and a device for synchronizing data and time between Bluetooth audio equipment. The Bluetooth audio equipment comprises an audio transmitting device, a Bluetooth hostand a Bluetooth slave, and is configured to implement the steps that: the Bluetooth host receives audio data transmitted by the audio transmitting device, executes decoding and re-encoding on the audio data, and transmitting the audio data and a recorded number of played points to the Bluetooth slave; the Bluetooth slave receives the encoded audio data, the number of played points and a data transmission delay time, decodes the audio data to obtain audio data cache, and transmits a play command to the Bluetooth host; and the Bluetooth host plays the audio data synchronously with the Bluetoothslave after receiving the play command for a certain time. The method and the device have the beneficial effects of: maximally reducing the relative delay between the host and slave earphones, processing the problem that a da