PURPOSE: To obtain a microscope photographing system which can cope with a continuous photographing action and perfectly execute an automatic photographing action.

CONSTITUTION: By this system, the first state in which a moving instruction for moving a photographic film 7 as much as n frames of a fraction obtained by equally dividing the full size of the film 7 with n is given to a shielding plate control circuit 13 according to a mode selected and designated by a man- machine interface part 15 after the photographing action of one frame of the film 7 is finished is executed. Besides, the second state in which the feeding instruction of one frame of the film 7 is given to a film driving control circuit 9 and the moving instruction for moving the film 7 as much as one frame of a fraction obtained by equally dividing the full size of the film 7 with n is given to the control circuit 13 is executed. Then, this system is provided with a CPU 14 giving an instruction so that the first and the second states are mutually repeatedly executed.