A pain-monitoring device and method according to an embodiment of the present disclosure is a pain-monitoring device for obtaining information related to a pain of a user and providing a service of monitoring the pain of the user, includes: an input unit sensing pain-related input of the user; a display unit outputting pain-related information; and a control unit controlling the input unit and the display unit, in which the input unit includes: a touch input unit sensing touch input of the user; and a pressure measurement unit measuring pressure input of the user, and the control unit creates user-input pain information in accordance with the sensed pressure input and touch input.