We are now investigating an operation support system of visual display terminals (VDT) for disabled or injured persons. One of the most important operation is controlling cursor position. We propose two methods by inclining motion of a head at which an acceleration sensor is attached. The gravitational values are controlled by the inclination of the head. One method is controlling cursor movement by acceleration values, and the other is that the cursor position is decided by acceleration values. Two methods are implemented in a PC and appropriate parameters for controlling cursor position are investigated by experiment. It is verified that the proposed two methods are useful for cursor control. Detail evaluation by many examinees and tests from aspect of usability remains as further studies.