A method for detecting an input device and a detection device. The method includes: acquiring (110) an electric field intensity of an electric field of a transmitting electrode of the input device at each of a plurality of detecting electrodes (810); determining (120) a gravity center position of the electric field and a center position of the electric field according the electric field intensity of the electric field of the transmitting electrode at each of the plurality of detecting electrodes (810); and determining (130) information regarding an attitude and/or a position of the input device according to the gravity center position of the electric field and the center position of the electric field. The method for detecting an input device and the detection device may reduce power consumption.