The invention discloses a shunt magnet roadblock with a liner, which is characterized in that it comprises a first body, two magnets, and two grooves; a cross section of the first body in the vertical direction is rectangular, and the The magnets are located on both sides of the first body, a cross section of the magnets in the vertical direction is rectangular, and the first body is coated with luminous paint. The present invention can be used in combination to make the combined roadblocks more stable. At present, the roadblocks used on the road are often displaced due to impact or wind blowing. The present invention can effectively solve this problem, so the present invention has great advantages. Strong application prospects, the invention is coated with luminous paint, so that people can still see bright light at night when there is no light, which enhances safety and has strong application prospects.