Slide rail of server case capable of avoiding installation of screw

The utility model discloses a slide rail of a server case capable of avoiding installation of screw. The case is installed in a cabinet which is provided with a plurality of holes, the slide rail comprises an inner rail connected with the case, a middle rail connected with the inner rail and being capable of sliding in the middle rail and an outer rail, wherein the middle rail is contained and connected in the outer rail and is provided with connecting pieces which can be elastically clamped into the holes of the cabinet. In the utility model, by adopting a rolling ball support manner, sliding between the inner rail and the outer rail is realized; by adopting an elastic buckling manner, the case can is fixed when the slide rail is opened and closed, thus being convenient to get in and out; and the slide rail and the cabinet are fixedly connected by matching a lock slide block and a spring, installation operation with screws is fully avoided, so that the operation process is more convenient and fast.