The invention discloses an electromagnetic stop valve. The electromagnetic stop valve comprises an inserting and connecting valve body, a valve base and a valve element; an installing cavity is formedin the inserting and connecting valve body; the valve base is installed at the position of a right end opening of the installing cavity; the valve base is provided with an A oil port; the side face of the valve base is provided with a B oil port; the valve element is connected in the installing cavity in a sliding manner; a first spring is arranged in the installing cavity; a control cavity is formed between the valve element and the left end of the installing cavity; an annular groove, a first through-flow hole, a first damping hole and an installing hole are formed in the valve element; a screw plug is installed in the installing hole, and is internally provided with a second damping hole and a ball; an inserting and connecting groove communicating with the control cavity is further formed in the inserting and connecting valve body; a C oil port for oil returning is formed in the side face of the inserting and connecting valve body; and a pilot electromagnetic valve used for controlling the C oil port to be connected or disconnected with the control cavity is installed in the inserting and connecting groove. The electromagnetic stop valve is simple and reasonable in structure and low in manufacturing cost, the opening speed of the valve element is adjustable, and the valve element pressure drop is small.