The invention provides an induction pad comprising a first induction layer, a second induction layer and a spacer layer, wherein the second induction layer comprises at least one second sparse induction zone and at least one second tight induction zone, and the spacer layer is arranged between the first induction layer and the second induction layer and comprises at least one high-pressure spacer zone and at least one low-pressure spacer zone, so that the second induction layer bears weight to be oppressed to press the spacer layer, further contacts the first induction layer to generate conductivity, senses positions which are contacted to be pressed, and judges whether a patient laying on a bed is positioned on the bed or not by virtue of the at least one tight induction zone and the at least one spare induction zone distributed on the second induction layer, therefore, the probability of erroneous judgment is lowered; and the second induction layer is used for sensing the gesture of the patient laying on the bed so as to know the using conditions of the patient laying on the bed.