The present invention relates to a control apparatus of an electromagnetic valve.The electromagnetic valve includes a valve body functioning as an intake valve or an exhaust valve of an internal combustion engine and an electromagnet for affecting an electromagnetic force relative to an armature provided on the valve body for actuating the valve body. Aside from the electromagnetic force, the valve body is displaced to a first displacement end against a first spring force, and to a second displacement end against a second spring force. The control apparatus of the electromagnetic valve includes a determining device for determining a target value regarding a force affecting the valve body when displacing the valve body from the first displacement end to the other displacement end or a state quantity of the valve body varied in accordance with the force; and a controller for controlling the electromagnetic force of the electromagnet for attracting the armature to the first displacement end based on a deviation between the force or the state quantity and the target value so that the deviation is the minimal when displacing the valve body from the first displacement end to the second displacement end.