After long-term use of urban asphalt concrete pavement, the pavement structure layer will be damaged, and its performance cannot meet the use requirements. Through the investigation and detection of the pavement flatness, pavement disease and pavement strength (deflection) of an old road, the pavement driving quality, pavement damage condition and pavement structure strength are evaluated. Aiming at the damage conditions of the different road sections, the relevant overhaul measures are proposed in order to improve the road bearing capacity, flatness and pavement functions to make various indexes of pavement reach the relevant requirements, recover the use performance of road and improve the service quality of road.