Ground cover is a necessary component of highway green space, and as a background color of landscape, it enriches landscape hierarchy, reflects regional characteristics, and reduces maintenance cost. By analyzing application of ground covers in some sections of 6 highways in Beijing, China, selection standards, application species, and planting designs of ground covers in highway green spaces of Beijing were explored, so as to enrich the application species, optimize landscape designs, and enhance the application of under-bridge ground covers.