The procedure and essentials for the design of steep slope embankment are expounded and the steep slopes of Yangshan port are taken as demonstration. The backfill material and the friction coefficient of the original mountain should be carefully selected for the design of steep slope embankment of the areas with the mountain ridge and overlapping hills. The reasonable parameters should be obtained from the site conditions to satisfy the purposes of stability and reduce the costs. Ratio of slopes and sliding retaining walls with reasonable height should be taken into account during the selection of measurements for the backfill of roadbeds. The gravity retaining wall with basements inclined inward can improve the safety coefficient obviously with excavation or blasting engineering quantities increasing little. The measurements for steep slope embankment may provide some reference for the slopes of the same kinds.