PROBLEM TO BE SOLVED: To provide a sensing pad.SOLUTION: A sensing pad comprises a first sensitive layer, a second sensitive layer, and a spacer layer. The second sensitive layer comprises at least one second sparse area, and a second dense sensitive area. The spacer layer is installed between the first sensitive layer and the second sensitive layer, and the spacer layer comprises at least one high-pressure spacer area and at least one low-pressure spacer area. As a result, the second sensitive layer receives pressurization caused by weight to compress the spacer layer, contacts with the first sensitive layer to generate electric conduction, detects a position where the second sensitive layer has received pressure caused by the contact, determines whether a lying person is positioned on a bed or not by at least one dense sensitive area and at least one spacer sensitive area distributed on the second sensitive layer, reduce a probability of erroneous determination, detects the posture of the lying person on the bed, and understands a use state of the lying person.
