PROBLEM TO BE SOLVED: To prevent piercing or the like in a biological issue from occurring when an insertion part of an endoscope is inserted into a body cavity, by allowing an operator to intuitively determinate the directionality of a condition of pressuring the endoscope.SOLUTION: An endoscope sensor system 2 is configured to include a pressure sensor 21 mounted on an insertion part of the endoscope 11, and a notification control unit 22 which makes a notification of a pressuring detection result by the pressure sensor 21 in a mode of determining the directionality of a condition of pressuring the endoscope 11.SELECTED DRAWING: Figure 1