Abstract: Road construction is an important part of my country's urban infrastructure construction. With the development of the country's economy and people's attention to environmental protection, the concept of sustainable development is deeply rooted in the hearts of the people. In road construction projects, to implement the concept of sustainable development, it is necessary to reduce the energy consumption of road construction through energy-saving measures in the construction and repair process. Based on this, this article starts with the maintenance of asphalt concrete pavement engineering, and conducts an in-depth discussion on the energy-saving maintenance measures of seam belt treatment technology, mist seal technology, slurry seal technology and micro-surface treatment technology, in order to ensure the quality of maintenance Under the premise, the energy-saving effect of road maintenance projects is maximized.