To provide a control device of a focal plane shutter, restraining variation of exposure time.

This control device of a focal plane shutter includes: an electromagnet 40 having a coil 42 and an iron core 41 where the coil 42 is wound; and a shutter curtain driven by a release lever 30, wherein the release lever 30 is attracted to the iron core 41 by energizing the coil 42 to hold the shutter curtain. The control device includes a control circuit 200 for controlling a current value to a circuit element provided on a current passage for supplying a current to the coil 42 so that the elapsed time from when energizing to the coil 42 is stopped until the shutter curtain separates from the iron core 41 to start driving is constant.