The invention discloses a linear sliding rail device, which comprises a sliding block, a linear orbit, positioning pins, a limit block, a positioning hole, a fixing bolt, a retaining strip, a mountingblock and a pad. The linear sliding rail device is characterized in that the linear orbit is arranged at the bottom of the whole structure, the multiple positioning pins are evenly arranged on the linear orbit, the sliding block is arranged above the linear orbit, and the retaining strip is arranged on the upper portion of the outer side of a left limit block. According to the linear sliding raildevice, a linear sliding rail is used for driving objects on the sliding block to move horizontally, the sliding block is mounted on the linear sliding rail, the sliding block moves along the linearsliding rail, and thus drives objects on the sliding block to move, the effect of linear movement is achieved, and the limit block is used for limiting and blocking the sliding block, so that it is avoided that the sliding block slides at too high a speed that the sliding block rushes out of the sliding rail; the safety and stability of the structure are improved, patterns on the surface of the pad are used for increasing the friction force between the objects and the sliding block to reach the anti-skid effect, the retaining strip can effectively prevent the sliding block from overturning, and the linear sliding rail device also has the advantages of being low in cost, strong and durable, and flexible in connection among components.