Abstract
The present invention provides a biaxial acceleration sensing component, comprising a first sensing member, a second sensing member, and a fixing unit. The first sensing member can move relatively to the second sensing member, the second sensing member can move relatively to the fixing unit, and the axial directions of the relative movements thereof are different, thereby sensing the accelerations of the two different axial directions. The sensing electrode between the first sensing member and the second sensing member and that between the second sensing member and fixing unit are correspondingly disposed. Therefore, when the first sensing member, the second sensing member, and the fixing unit move relatively, these sensing electrodes can make outputted capacitance generate difference values since overlapped areas thereof are changed, thereby sensing the change of acceleration.