With the development of geosynthetics application technology, more and more reinforced structures are used in civil engineering area. Especially in the mountainous area, where the topography is usually very complicated, it will be much better to build a reinforced structure rather than traditional structure. TensarTechTM reinforced structure include two different forms as reinforced slope and rein-forced wall, with different feature and different scope of application. Based on Dulong mining expansion project, this paper introduced how to use the special feature of reinforced slope and reinforced wall to solve the engineering problem, with various kinds of difficulty, such as high structure, limited area, com-plicated topography, poor geological condition, water, etc. Except the technology problem, TensarTechTM reinforced structure also gains good economic and environmental benefits in this project. This paper is used to promote the application of reinforced structure and help the engineering technicists to solve simi-lar problems much better.