A medical support control system comprising a recording device for recording an image signal from a medical device, a medical support control device for synthesizing an image based on the image signal and a prescribed GUI, and a display manipulation device for display the GUI, wherein: on the basis of an input of setting information about the recording device on an administrator setting window of a GUI displayed by the display manipulation device, the medical support control device creates a GUI including device selection means for causing one of the medical devices to be selected, image selection means for causing one of image signals output from the medical devices to be selected, and display means for causing the image corresponding to the selected image signal to be displayed, and causes the created GUI to be displayed on the display manipulation device as a manipulator window.