Nursing system and nursing method

In this nursing system and nursing method, a thermal image acquisition unit (3) is attached to a wall (4) or ceiling (5) on the side where the head of a person to be nursed (1) is located when the person to be nursed (1) lies on a bed (2), and acquires a thermal image by capturing an image of the bed (2) and the surroundings thereof from diagonally above. A reference setting unit (12) sets two reference lines (8, 9) corresponding to the left and right ends of a bed (2) in a thermal image, and a reference height (10) for determining whether a person to be nursed gets up. A heat source detection unit (13) detects a block (11) of a heat source in a thermal image. The state determination unit (14) determines the state of the person to be cared (1) on the basis of the positional relationship between the block (11) of the heat source and a safe region (15) surrounded by the reference lines (8, 9) and the reference height (10). A determination result output unit (7) outputs the determination result of the state dete