A medical control device includes: a light source controller configured to modulate pulsed light by changing a crest value of a pulsed current and emit the pulsed light a plurality of times from the light source in one frame； an imaging controller configured to cause an image sensor to sequentially generate a pixel signal at a specific frame rate； and an image processor configured to use a pixel signal obtained by multiplying the pixel signal for specific one frame from each pixel of a specific horizontal line by a ratio of an amount of exposure of specific pulsed light made in the specific one frame to a total exposure amount obtained by adding each exposure amount of all of the pulsed lights exposing the specific horizontal line within the specific one frame including an illumination period of the specific pulsed light.
