This dataset represents the average production situation of passenger-vehicle acoustic insulation material in China, mainly adopting the melt-blown process. The dataset considers the core production processes such as melting of synthetic/recycled fibres, spinning into fibres, web laying and forming, compositing, edge sealing and cutting, as well as the raw and auxiliary material acquisition and input (polyester fibre, polypropylene fibre, non-woven fabric, etc.), energy supply, and direct emissions and process waste generation in the related auxiliary processes (such as waste treatment and equipment lubrication); it does not include product packaging, the manufacture of production equipment, and infrastructure construction such as plant buildings; the inventory has been supplemented and verified according to the principles of material balance and water balance. The data are mainly based on the publicly available production materials of multiple industry-representative enterprises, formed after weighted integration.