The embodiment of the invention discloses a method and a device for adjusting a connection parameter of a Bluetooth device with low power consumption and a card type device. The method comprises the steps of obtaining a motion parameter of a card type device by utilizing a gravity sensor; judging whether the card type device has a specific motion based on the motion parameter; and if so, correspondingly adjusting the connection parameter of the card type device based on the motion parameter of the specific motion. According to the method and device for adjusting the connection parameter of the Bluetooth device with low power consumption and the card type device, the purpose of adjusting the connection parameter of the card type device flexibly is realized.