A surgical robot having a first power switch and used in endoscopic surgery, the surgical robot comprising: an operating section configured to receive a pressure from a gas, to thereby operate, the gas having an air pressure controlled by an electromagnetic control valve, the electromagnetic control valve being controlled by a drive controller to operate; a pressure generating device configured to generate the pressure, the pressure generating device comprising a second power switch; a pressure detector (PS1, PS2) configured to detect a pressure supplied from the pressure generating device to the operating section, the pressure detector comprising a first pressure sensor configured to detect a discharge pressure in the pressure generating device and a second pressure sensor configured to detect a pressure at an outlet of the electromagnetic control valve; and an operation diagnosis device configured to make a determination, using the pressure detected by the pressure detector, whether the operating section is operable, and configured to notify a user of a result of the determination in a form of sound information or image information, wherein the operation diagnosis device is configured to determine, based on the first power switch being turned on, whether a pressure detected by the first pressure sensor (PS 1) meets a first pressure requirement, and if the operation diagnosis device determines that the first pressure requirement is met, the operation diagnosis device is configured to notify that the first pressure requirement is met, and if the operation diagnosis device determines that the first pressure requirement is not met, the operation diagnosis device is configured to notify that the first pressure requirement is not met, and wherein the operation diagnosis device is configured to determine, based on the drive controller being activated, whether a pressure detected by the second pressure sensor meets a second pressure requirement, and if the operation diagnosis device determines that the second pressure requirement is met, the operation diagnosis device is configured to notify that the second pressure requirement is met, and if the operation diagnosis device determines that the second pressure requirement is not met, the operation diagnosis device is configured to notify that the second pressure requirement is not met. an operating section configured to receive a pressure from a gas, to thereby operate, the gas having an air pressure controlled by an electromagnetic control valve, the electromagnetic control valve being controlled by a drive controller to operate; a pressure generating device configured to generate the pressure, the pressure generating device comprising a second power switch; a pressure detector (PS1, PS2) configured to detect a pressure supplied from the pressure generating device to the operating section, the pressure detector comprising a first pressure sensor configured to detect a discharge pressure in the pressure generating device and a second pressure sensor configured to detect a pressure at an outlet of the electromagnetic control valve; and an operation diagnosis device configured to make a determination, using the pressure detected by the pressure detector, whether the operating section is operable, and configured to notify a user of a result of the determination in a form of sound information or image information, wherein the operation diagnosis device is configured to determine, based on the first power switch being turned on, whether a pressure detected by the first pressure sensor (PS 1) meets a first pressure requirement, and if the operation diagnosis device determines that the first pressure requirement is met, the operation diagnosis device is configured to notify that the first pressure requirement is met, and if the operation diagnosis device determines that the first pressure requirement is not met, the operation diagnosis device is configured to notify that the first pressure requirement is not met, and wherein the operation diagnosis device is configured to determine, based on the drive controller being activated, whether a pressure detected by the second pressure sensor meets a second pressure requirement, and if the operation diagnosis device determines that the second pressure requirement is met, the operation diagnosis device is configured to notify that the second pressure requirement is met, and if the operation diagnosis device determines that the second pressure requirement is not met, the operation diagnosis device is configured to notify that the second pressure requirement is not met.