Disclosed are a mode control method for Bluetooth headset, a mode control device for Bluetooth headset, and computer-readable storage medium. The method includes: in response to receiving a microphone mode setting instruction sent by the user terminal, setting a working mode to the microphone mode; and in the microphone mode, picking up a sound signal through a main microphone in the Bluetooth headset, and playing the sound signal picked up by the main microphone through a target speaker, the Bluetooth headset and the target speaker are communicated through a second Bluetooth connection mode.