The utility model provides a drainage bituminous paving maintenance structure, making make progress from the road bed on the road bed, in proper order for underlayment, basic unit, hold layer, waterproof bonding layer, drainage blanket and maintenance structural layer down, the maintenance structural layer is laid by the emulsified asphalt slurry mixture, and maintenance structural layer thickness is 0.5~2.0cm. This road surface maintenance structure engineering time is short, can implement under the circumstances that does not influence normal traffic, also can seal the paragraph in the short distance traffic and construct, reduces the influence of construction to traffic operation by a wide margin. The utility model provides a maintenance structure plays positive effect to drainage bituminous paving's maintenance, can effectively reduce drainage bituminous paving's the grain that disperses, improves drainage bituminous mixture's the anti ability of dispersing, prolongs drainage bituminous paving's life.