As the construction of highways extend to the mountainous areas in the central and western regions in China，a large number of high-steep slopes have been generated. The construction process not only broke the geo? logical and ecological balance of the original mountains，but also easily to induce geological disasters such as land? slides，collapses and debris flows，which seriously threaten people’s lives and property safety. Therefore，some problems of high-steep slopes in mountainous areas have always been the key and difficult points in geotechnical en? gineering，including stability analysis，design，treatment and monitoring. However，due to the characteristics of high uncertainty，strong nonlinearity and dynamic evolution of high-steep slopes，it is difficult to obtain reasonable answers to the above problems based on analysis and calculation methods of classical theory. Artificial intelligence technology has the unique advantage of dealing with nonlinear complex systems，and it has become an effective means to solve slope engineering problems in highway. Therefore，this paper summarizes the main research progress in several fields of slope engineering of highway in mountainous areas in the past 10 years，including intelligent analysis calculation and evaluation method of slope stability，calculation method for intelligent design of slope pro? tection and reinforcement，intelligent monitoring technology of slope，intelligent identification and prediction of landslides，intelligent inversion of rock and soil parameters，intelligent identification of rock slope structural planes，and so on. Furthermore，the further development direction of intelligent construction of slope engineering in highway is briefly explained in the fields of slope stability analysis and reinforcement design，on-site monitoring and landslide prediction.