In recent years, road networks in Japan have been frequently disrupted due to road earthwork sections composed of embankment and cut road earth structures and natural slopes during heavy rains and earthquakes. Of the 1.2 million km of roads in Japan, only 16,000 km are bridges and tunnels, and more than 90% of the roads in Japan are considered to be road construction sections. The management of road earthwork sections is important for the management of the functioning of the road network, both in terms of the proportion of road length and in terms of the proportion of problems that occur. This paper provides an overview of the management methods used in the service phase of road earthwork sections in Japan and explains the background of these methods. In addition, the paper will discuss points to keep in mind and possibilities for the transfer of Japanese disaster prevention technology to overseas countries.