A common input read method of an array signal is applicable to a touch sensing apparatus using a drive signal having a characteristic of a continuous function (being differentiable) as a touch basis. The touch sensing apparatus includes a plurality of sensing electrodes and a plurality of drive electrodes. Any sensing electrode initially first undergoes a stabilization process till a signal becomes stable and indicates completion, an initially stabilized same sensing electrode is then read according to a selection order of the drive electrodes, and an initial stabilization action only needs to be performed when a sensing electrode that is not currently processed needs to be processed. In this way, the time it takes to enter a steady state is reduced, so that the sensing speed is further increased.