The stable sliding rail based on the sliding rail screen comprises a sliding rail, a cavity with a downward opening is formed in the sliding rail, two parallel hanging point connecting grooves are formed in the top of the sliding rail, a plurality of wall face connecting pieces are arranged on the back face of the sliding rail, and a guide groove is formed in the top of the inner side of the cavity. The two side walls of the cavity extend downwards and protrude out of the bottom wall of the cavity to form a supporting plate, the supporting plate and the bottom wall of the cavity form an L-shaped structure, a plurality of reinforcing ribs are arranged on the inner side of the L-shaped structure at equal intervals, a triangular beam is arranged in front of the sliding rail, and the reinforcing ribs are plate-shaped right triangles. Two right-angle sides of the reinforcing rib are respectively connected with the supporting plate and the bottom wall of the cavity; the utility model has the advantages of high structural strength, difficulty in bending deformation, excellent integral rigidity and the like.
