According to the features of the maintenance of superhighway, this paper puts forward the new mode of superhighway maintenance of establishing the specialized maintenance ranks and small-sized maintenance team, making rational division and close cooperation with local government and masses.

Aiming at the damage characteristic, this paper analyzes the process in expressway construction, and the mathematics model and program is used in the decision of expressway maintenance mechanization, which provides scientific and effective decision bases for the managers of road maintenance enterprise.

Expressway maintenance management is an important part of our country highway maintenances system reforming, is the result of expressway rapid development recent years, which relates to the service standard of expressway.

Along with the rapid development of expressway construction, we will be faced with a problem of expressway maintenance, which relates to the service standard and sustainable development of expressway.

According to the characteristics of highway maintenance and management work, we combined the Geographic Information System (GIS) and maintenance flow, and designed the Highway Maintenance Management System.

Based on the highway maintenance at home and abroad, the basic content of highway maintenance was stated.

Up to now there is no a mature model and approach of evaluating the cost and benefit of pavement preventive maintenance(PPM) at home and abroad.