As a new type of highway slope retaining form developed with the landscape planting method, the oblique-inserting slab-pile wall has achieved certain development in recent years. On the basis of comparative and analysis of traditional vertical type slab-pile wall, this thesis confirms the merits of oblique-inserting slab-pile wall. The design concept and method of oblique-inserting slab-pile wall were analyzed; the construction technology and quality control measures of the wall were put forward. The article provides scientific basis and valuable experience for the same kind of slope support.