垃圾分类，指按一定规定或标准将垃圾分类储存、分类投放和分类搬运，从而转变成公共资源的一系列活动的总称。分类的目的是提高垃圾的资源价值和经济价值，力争物尽其用。
Garbage classification refers to a series of activities of classifying, storing, putting and handling garbage in accordance with certain regulations or standards, thus transforming it into public resources. The purpose of classification is to improve the resource value and economic value of garbage, and strive to make the best use of everything.
垃圾在分类储存阶段属于公众的私有品，垃圾经公众分类投放后成为公众所在小区或社区的区域性准公共资源，垃圾分类驳运到垃圾集中点或转运站后成为没有排除性的公共资源。从国内外各城市对生活垃圾分类的方法来看，大致都是根据垃圾的成分构成、产生量，结合本地垃圾的资源利用和处理方式来进行分类的。
Garbage belongs to the public's private goods in the stage of classified storage. Garbage has become a regional quasi-public resource in the community or community where the public is located after classified release. Garbage classified and barged to the garbage concentration point or transfer station has become a non-exclusive public resource. From the point of view of domestic waste classification methods in domestic and foreign cities, it is generally classified according to the composition and production of garbage, combined with the utilization and treatment of local garbage resources.
2019年6月25日，生活垃圾分类制度将入法。
On June 25, 2019, the domestic waste classification system will be introduced into the law.