Pedestrian crossing early warning system based on projection reflection

The utility model provides a pedestrian crossing early warning system based on projection reflection. The pedestrian crossing early warning system comprises a projection and warning integrated rod and a preformed reflective marking module. The projection and warning integrated rod comprises a stand column, and a projection lamp module, a man-vehicle warning module, a radar detection module and a control module which are mounted on the stand column; the radar detection module is used for monitoring road condition information in a preset range of a pedestrian crossing and sending the road condition information to the control module; the control module is used for controlling the projection lamp module to project light to the preformed reflective marking module when it is judged that pedestrians are close to a pedestrian crossing and vehicles run on a main road based on the road condition information under the condition that the scene is dim, and the control module is used for controlling the projection lamp mod