In landscape design, the choice of appropriate building materials is the key to achieve both beauty and function. In recent years, garden building materials made of wood-plastic wood materials have been widely concerned because of their unique advantages. Wood plastic composite material, referred to as wood plastic, is a new type of environmental protection material composed of more than 50% wood fiber or plant fiber powder mixed with polymer resin. This material not only retains the natural texture and warm touch of wood, but also overcomes the shortcomings of traditional wood, which is perishable and deformed, and has the water resistance, corrosion resistance and durability of plastic. The production process of wood plastic material is a typical green manufacturing process. It uses waste wood and plastic as raw materials to make plates or profiles through a series of processes such as crushing, mixing and extrusion. This transformation not only effectively reduces the dependence on forest resources, but also solves the problem of environmental pollution of waste plastics and realizes the recycling of resources. In addition, wood-plastic materials can still be recycled after the end of their service life, further reflecting its environmental value. From the performance point of view, wood plastic materials have a variety of advantages. It is not easy to be damp, not mold, not afraid of insects, these characteristics make wood plastic materials especially suitable for outdoor environment. Compared with traditional wood, wood plastic materials do not need regular paint protection, low maintenance costs, long service life. Moreover, wood-plastic materials have good processing properties and can be cut into various shapes and sizes according to design needs to meet the individual needs of different garden designs. In practical applications, wood-plastic materials have been widely used in many aspects of garden construction. For example, wood-plastic flooring is often used in park trails, viewing platforms, etc., and its surface treatment technology makes it non-slip, wear-resistant, and can maintain good safety and beauty even in rainy days. In addition, wood-plastic fences and guardrail are also common facilities in gardens, they not only play a role in beautifying the environment, but also provide the necessary security protection. With the progress of science and technology and the demand of the market, the types of wood plastic materials are also constantly enriched. In addition to traditional wood-plastic composites, new materials such as ASA quartz wood and WPC co-extruded wood have also emerged. On the basis of retaining the basic advantages of wood plastic, these materials further enhance the weather resistance, anti-aging ability and color stability, making the application range of wood plastic materials more extensive.