In recent years,with the rapid development of China's economy,the construction speed of highway has increased year by year.With the accelerated layout of the road network,the frequent relocation and cutover of optical cables,the tight time and heavy tasks,the relocation quality and construction technology of many projects decline,thus affecting their service life.In view of this condition,this paper takes the surrounding area of highway as an analysis scenario,analyzes the characteristics,principles and implementation steps of the relocation of communication optical cable lines,sorts out the technical status and application scenarios of the relocation construction,hoping to provide some technical reference and theoretical value for technical personnel engaged in related projects.