The invention discloses a double-sided display device with a decorative lighting. The double-sided display device comprises a Chinese knot rack, a portal type frame, a wheatear knot, a light bar, a display screen, threaded barrels, threaded rods, fixed rings, fastening parts, a limiting barrel, a limiting column, a threaded column, a fixed screw cap, a double-ended fixed rod, a slide hole, a spring, a fixed plate and a fixed hole, wherein multiple threaded rings are fixedly arranged at one side of the portal type frame at equal distance; threaded rods are mounted in the threaded barrels in anengaged mode; the outer sides of the threaded rods are equipped with the fastening parts in an engaged mode; the end parts of the threaded rods are symmetrically and rotatably equipped with fixed rings; one side, away from the threaded barrels, of the portal type frame is equipped with the Chinese knot rack; and the top end of the Chinese knot rack is fixedly connected to the portal type frame. According to the double-sided display device with the decorative lighting disclosed by the invention, the display screen is stably mounted, mounting and dismounting convenience is high, the display screen is conveniently and timely maintained and replaced; meanwhile, the device can regulate mounting length and horizontal perpendicularity; and moreover, dimensions of the fixed rings can be regulatedaccording to different mounting conditions, so that mounting convenience is improved.