A pen pressure detecting module for detecting a pressure applied to a tip of a core body of an electronic pen as a pen pressure, the pen pressure detecting module comprising: a pressure sensing unit configured to output electrical information corresponding to the applied pressure through two electrodes (613, 614); and a holder including a retaining portion for retaining the pressure sensing unit and a connecting portion having two terminal members (623, 624) formed of a conductive material for electrically connecting the two electrodes of the pressure sensing unit retained in the retaining portion to a circuit board having a circuit detecting the applied pressure on a basis of the electrical information output from the pressure sensing unit; the retaining portion and the connecting portion of the holder being arranged along a direction of application of the pressure in a state in which the retaining portion is on a side to which the pressure is applied; the connecting portion of the holder including an engaging portion (6221, 6222) engaging with the circuit board on an opposite side from the side to which the pressure is applied, and the two terminal members (623, 624) being formed so as to extend from the retaining portion to the engaging portion (6221, 6222) the two terminal members (623, 624) being electrically connected to conductor patterns (81, 82) of the circuit board; the two electrodes (613, 614) of the pressure sensing unit and the conductor patterns (81, 82) of the circuit board being electrically connected to each other through the two terminal members (623, 624) of the connecting portion when the engaging portion (6221, 6222) of the connecting portion of the holder engages with the circuit board. a pressure sensing unit configured to output electrical information corresponding to the applied pressure through two electrodes (613, 614); and a holder including a retaining portion for retaining the pressure sensing unit and a connecting portion having two terminal members (623, 624) formed of a conductive material for electrically connecting the two electrodes of the pressure sensing unit retained in the retaining portion to a circuit board having a circuit detecting the applied pressure on a basis of the electrical information output from the pressure sensing unit; the retaining portion and the connecting portion of the holder being arranged along a direction of application of the pressure in a state in which the retaining portion is on a side to which the pressure is applied; the connecting portion of the holder including an engaging portion (6221, 6222) engaging with the circuit board on an opposite side from the side to which the pressure is applied, and the two terminal members (623, 624) being formed so as to extend from the retaining portion to the engaging portion (6221, 6222) the two terminal members (623, 624) being electrically connected to conductor patterns (81, 82) of the circuit board; the two electrodes (613, 614) of the pressure sensing unit and the conductor patterns (81, 82) of the circuit board being electrically connected to each other through the two terminal members (623, 624) of the connecting portion when the engaging portion (6221, 6222) of the connecting portion of the holder engages with the circuit board.