Generally speaking, the collection of silage requires a series of processes such as harvesting, shredding, transportation, compaction, and capping. The silage harvester can realize the whole process operation in the forage grassland, which can not only solve the problem of secondary oxidation of silage. It can also realize miniaturization of silage packaging, making the silage more quality and safer. At present, in the domestic market, there are many brands of silage harvesters, but one brand is really popular. Although the foreign brand Dashan is the top, it still relies on quality and sexuality to gain the favor of domestic agricultural machinery users, especially its autonomy. The 9QZ series self-propelled silage harvester developed by the company has been well received by users since its listing. It is a high-end domestic silage machine brand. It is Shijiazhuang Meidi, a domestic influential professional manufacturer of silage.