PROBLEM TO BE SOLVED: To solve such a problem that it is hard to suppress afterimage and moving image blur when a moving amount of a subject is large, while inhibiting the lowering of resolution in the vertical direction.SOLUTION: An electronic endoscope system comprises: a light source part that cyclically exits first light and second light at timing synchronized with a field rate and that continuously exits only the first light to 2 fields or more means that generates a first field image by the first light and a second field image by the second light display means that simultaneously displays the first and second field images at the field rate within one screen means for detecting a moving amount of a subject and determination means that determines whether a detected moving amount is large or not. When the moving amount of the subject is large, the display means displays, in a lack field of the first field image, a previous first field image and, when the moving amount of the subject is small, displays, in the lack field, the first field image of one before the previous field.
