The utility model discloses a bridge central isolation strip, it is provided with crashproof mound in the regional both sides in median, and crashproof mound embeds the drain pipe, two bridge bodies are reserved the portion of sewing on and are set up first plank, first plank both sides are built solidification and are formed a lightweight concrete layer to form the cross slope of two -way downward sloping, a SBS waterproofing membrane has been laid to a lightweight concrete layer top surface, be provided with the second plank on the SBS waterproofing membrane, second plank both sides are built solidification and are formed the 2nd lightweight concrete layer, the cladding has the 2nd SBS waterproofing membrane outside the 2nd lightweight concrete layer, the outside on the 2nd lightweight concrete layer is provided with the french drain, planted agent's mortar and pavement brick have been laid in proper order to the top surface of the 2nd SBS waterproofing membrane top surface and french drain, install the antiglare shield on the pavement brick. The utility model provides a central isolation strip not ponding, lifting bridge roof beam durability does not seep water.