A method for updating a connection parameter between a low-power Bluetooth remote control device and a Bluetooth controlled device that is communicatively connected with the low-power Bluetooth remote control device, the method is performed in the low-power Bluetooth remote control device and characterised by comprising: transmitting, to the Bluetooth controlled device, a prompt message indicating a switch of remote control mode in the low-power Bluetooth remote control device, upon detection of a local switch of remote control mode, so that a request for updating a connection parameter is generated by the Bluetooth controlled device based on the prompt message and transmitted to the low-power Bluetooth remote control device, wherein reaction timing for updating the connection parameter is carried in the request for updating the connection parameter, and is earlier than default reaction timing initially set in the low-power Bluetooth remote control device; monitoring, for every Connection Interval after the local switch of remote control mode, whether the request for updating the connection parameter transmitted by the Bluetooth controlled device is received locally; transmitting, to the Bluetooth controlled device, a response for agreeing to update the connection parameter, upon detection of the request for updating the connection parameter; and updating the connection parameter between the low-power Bluetooth remote control device and the Bluetooth controlled device, when the reaction timing for updating the connection parameter expires, wherein the Connection Interval between the low-power Bluetooth remote control device and the Bluetooth controlled device is shortened upon detection of a local switch to a voice remote control mode, and is lengthened upon detection of a local switch to a button remote control mode. transmitting, to the Bluetooth controlled device, a prompt message indicating a switch of remote control mode in the low-power Bluetooth remote control device, upon detection of a local switch of remote control mode, so that a request for updating a connection parameter is generated by the Bluetooth controlled device based on the prompt message and transmitted to the low-power Bluetooth remote control device, wherein reaction timing for updating the connection parameter is carried in the request for updating the connection parameter, and is earlier than default reaction timing initially set in the low-power Bluetooth remote control device; monitoring, for every Connection Interval after the local switch of remote control mode, whether the request for updating the connection parameter transmitted by the Bluetooth controlled device is received locally; transmitting, to the Bluetooth controlled device, a response for agreeing to update the connection parameter, upon detection of the request for updating the connection parameter; and updating the connection parameter between the low-power Bluetooth remote control device and the Bluetooth controlled device, when the reaction timing for updating the connection parameter expires, wherein the Connection Interval between the low-power Bluetooth remote control device and the Bluetooth controlled device is shortened upon detection of a local switch to a voice remote control mode, and is lengthened upon detection of a local switch to a button remote control mode.