A temperature sensor 34 for directly measuring the temperature of the connector board 8 is provided on the connector board 8 of the endoscope connector 5 connected to the processor 10, and the measured temperature of the connector board 8 (that is, the endoscope connector 5) is measured. By controlling the power supply from the endoscope power supply circuit 33 according to the temperature (that is, restricting and stopping the power supply), the temperature of the endoscope connector 5 in the endoscope 1 is properly adjusted. to manage.プロセッサ１０に接続する内視鏡コネクタ５のコネクタ基板８に当該コネクタ基板８の温度を直接的に測定するための温度センサ３４を設け、測定したコネクタ基板８（すなわち、内視鏡コネクタ５）の温度に応じて内視鏡電源回路３３からの電源供給を規制（すなわち、電源供給を制限、及び、停止）する制御を行うことにより、内視鏡１における内視鏡コネクタ５の温度を適正に管理する。
