Elevator guide rail, the rail and the connection plate is constituted by the lift member, which is divided into the car guide rails and counterweight guide rails. From the cross-sectional shape into T shaped, L-shaped and hollow three forms. From the guide rails at the same time, bear the car, the impact force when braking the elevator safety gear, braking force of the impact. The size of these forces and lift out the quality and speed, and therefore should be based on the quality of the elevator speed and load matching rails. Usually called the main rail car guide rail, heavy rail as deputy for rail.