Abstract: Provided are: a power supply control system to simply and safely charge a power source for a sensor installed in a machine tool. Power supply control system 1 supplies power to an electronic device 30 and comprises: the electronic device 30 which comprises a battery 33 to drive the electronic device 30, a power reception antenna 31 that acquires a radio wave for transmitting power to the electronic device 30, a conversion unit 34 that converts the radio wave received by the power reception antenna 31 into power, and a charging unit 35 that charges the battery 33 with the power converted by the conversion unit 34; and a power supply control unit 44 which controls the conditions in which power is transmitted to the power reception antenna 31 such that the operation of the electronic device 30 is not affected.