With the development of traditional gasoline vehicles and the rise of electric vehicles,the application of cutting-edge science and technology materials in components is becoming more and more prominent,and has become the highlight and selling point of vehicle models.The traditional parts of automobile interior headliner are designed with conventional materials.The automobile headliner is usually made of fabric layer,substrate layer and non-woven fabric on the back.The substrate layer has non-recyclable PP Glass Fiber Board and Pu Glass Fiber Board.As well as the compound when the use of rubber layer,on the roof products and non-metal parts of the vehicle odor grade,VOC volatility has a negative impact,while the product price and weight is to be optimized.In some models,there are also the use of hemp fiber board,But easy to absorb water dampness,mildew,has been phased out In this paper,the application of light-weight and more environment-friendly materials of headliner products is studied,and the polypropylene physical foaming and spraying material sheet is used as the carrier of headliner substrate instead of traditional headliner substrate,in order to achieve cost reduction,weight loss,and improve the environmental performance of the vehicle efficiency.The utility model belongs to the frontier science and technology application field of automobile parts products.