Powder metallurgy is indispensable in the automotive industry. It is an extremely ideal processing technology. The products produced by it are of excellent performance and quality, and have been recognized, accepted and widely applied in various industries. This is even more evident in the automotive industry. For the automotive sector, powder metallurgy technology and parts are their top choices. Due to the particularity of powder metallurgy technology, the technical content of the products is very high. If it is applied in the manufacturing of automobiles, it can not only reduce the weight of automobiles but also be very beneficial for lowering the manufacturing cost of automobiles. In addition, this technology also plays a role in optimizing the production process of automotive industry products and enhancing the competitiveness of the automotive industry. Each of the above points may be a reason for its popularity. In automotive manufacturing, the parts commonly used by powder metallurgy technology include sintered metal oil-impregnated bearings and powder metallurgy structural parts. They can not only replace cast iron parts, forged steel parts, and machined parts, but also achieve many advantages such as energy conservation, material saving, environmental protection, economy, and high efficiency. Currently, Powder metallurgy has been widely recognized by the industry as a green and sustainable manufacturing technology, which is beyond the reach of many traditional processes. It is precisely for this reason that powder metallurgy is so popular and will become the mainstream in the industry in the future.