Abstract: A tool for objectively evaluating the technique of a medical treatment such as an operation or a palpation performed by a doctor or a medical student. A medical technique evaluation system comprises a soft material member having an incision made in itself for simulative suture by a trainee such as a doctor or a medical student and elastic deformation by a force acting on the surroundings of the incision, reflective type photointerruptor for measuring the state values in three orthogonal axes according to the elastic deformation of the soft material member and a technique evaluation device for determining the evaluation score of the technique of the suture and ligation on the basis of the measured values from the reflective type photointerruptor. The technique evaluation device substitutes values based on the measured state values in the orthogonal three axes into a predetermined evaluation function to determine the evaluation score.