Abstract: A safety switch including a follower bar molded from elastic material and fastened to the bottom rail of an electric rolling door and having two longitudinal ribs on the inside, two metal sheets mounted inside within the follower bar above the longitudinal ribs and separated by a slotted sheet insulator, two actuators respectively fastened to two opposite ends of the bottom rail of the electric rolling door, each actuator having a top plate fastened to one end of the bottom rail of the electric rolling door, and two crossed pressure bars respectively pivoted to the top plate, wherein when the follower bar or one actuator is stopped by an object during the down stroke of the electric rolling door, the follower bar is deformed to force the longitudinal ribs upwards against the metal sheets, causing the metal sheets to contact each other at holes on the sheet insulator and to further cut off power supply from the electric rolling door.