Warning board provided with anti-collision structure and facilitating illumination and used for road construction

The utility model discloses a road construction warning board with an anti-collision structure and convenient to illuminate, and relates to the technical field of warning boards, the road construction warning board comprises a base, the top of the base is fixedly connected with a stand column, the stand column is sleeved with a sleeve so as to extrude a spring, under the action of the spring, a buffer effect is achieved on a movable rod, and the movable rod can be conveniently moved. Through sliding of a connecting plate on the top of a stand column, the height of the connecting plate is adjusted, the height of a warning board is adjusted, the height of the device can be adjusted, a road can be illuminated through an LED illuminating lamp, and then the use function of the device is improved; the problems that most of road construction warning boards in the current market are too simple in structure and mostly formed by combining frames and square plates, the height of a common warning board cannot be adjusted