电梯导轨是安装在电梯井道中或楼层之间的两列或多列垂直或倾斜的刚性轨道，保证轿厢和对重沿其作上下运动，保证自动扶梯和自动人行道梯级沿其作倾斜或水平运动，为电梯轿厢、对重装置或梯级提供导向。从导轨的定义可知，导轨是垂直电梯、自动电梯、自动人行道梯级的重要基准部件，它控制着电梯轿厢、自动扶梯和自动人行道梯级运行轨迹，保障操作信号的传递，它又是涉及电梯安全及运行质量的重要部件。
Elevator guide rail is two or more vertical or inclined rigid tracks installed in the elevator shaft or between floors, to ensure that the car and counterweight move up and down along it, to ensure that the escalator and the step of the moving sidewalk move up and down along it, to provide guidance for the elevator car, counterweight device or step. From the definition of the guide rail, we can see that the guide rail is an important benchmark component of the vertical elevator, escalator and escalator steps, which controls the running track of the elevator car, escalator and escalator steps, and ensures the transmission of the operation signal. It is also an important component related to the safety and operation quality of the elevator.