Rail seat for sliding door

Disclosed is a push-pull door rail base, comprising a slide way and a pulley fixed at the bottom of a door leaf, wherein the pulley is arranged on the slide way. The utility model combines the advantages of an aluminium alloy door and a plastic-steel door and overcomes the disadvantages of large size, inconvenience in using push-pull type framed doors. The door rail base is of no need to be buried in the ground and is convenient to install and use after the decoration of the floor. The height of the slide way is no more than 1 centimeter and the slide way can be taken off if necessary. Dirt is not easy to get into the bottom of the slide way slot, thereby maintenance is easy, without any additional cost. The utility model can be made with the market materials and is suitable for doors and windows.