Provided is an endoscope system including: a light source apparatus detecting which color LED fails by a color sensor a scope that irradiates a subject with illuminating light and takes in an optical image of the subject a CCD that picks up an image of the optical image of the subject a video processor that processes the picked up image and a monitor that displays a processed image, wherein if a failure of any of the LEDs is detected by the color sensor, the light source apparatus generates illuminating light using LEDs of colors other than a color of the light-emitting device for which the failure is detected, and wherein the video processor switches image processing to image processing according to a color of the LED for which the failure is detected.
