EPS decorative moulding is a new type of exterior wall decorative line and component, which is made of polystyrene resin with foaming agent, heated at the same time to soften, produce gas, and form a kind of foam with a hard closed-cell structure. Not affected by temperature changes, cold resistance, heat resistance; Unaffected by humidity and acid rain. EPS decorative moldings can be fireproof and will not emit toxic substances, which is environmentally friendly and high-quality decorative building materials products.