This measurement device is a measurement device for measuring compressive force and pulling force in a direction of a longitudinal axis applied to a linear body (1) having flexibility, and it includes a main body (2) in which a through hole (3) for inserting the linear body is formed. The through hole (3) is formed to allow bending of the linear body (1) in an arc shape in the through hole (3) and variation in degree of bending of the linear body (1) in accordance with compressive force and pulling force. This measurement device further includes a sensor (30) for detecting a degree of bending of the linear body (1) and a conversion circuit 12 for converting the degree of bending detected by the sensor (30) into a signal indicating compressive force and pulling force applied to the linear body (1).
