Bus door, also called flat door. It refers to the door body when in close condition, realizes to go up in same plane with the door body of both sides or cabinet body. In appearance, there is no plane difference between the door bodies. It is a kind of embedded door body. The door body moves forward and backward through the guide rail, and then moves in the left and right directions. It is a kind of two-way moving door body. Maglev bus door is the manual bus door combined with the maglev track through the structural design, and the power is provided through the maglev track to realize the automatic and intelligent control of the bus door.