分类垃圾箱分为不同的颜色，是国家统一制定的标识，将生活垃圾划分为几类，我们常见的分类垃圾桶有四个颜色，分别为红色分类垃圾箱、（红色代表有害物质，其中包括过期药品、废旧电池、油漆、化妆品等和其他具有一定污染危害的不可回收物质。）蓝色分类垃圾箱、（代表可回收再次循环利用垃圾，包括塑料、纸类、金属等有利用价值的物质，这些垃圾将被放入废品回收系统，作资源再生处置使用）绿色分类垃圾箱、（绿色代表厨房垃圾，厨余垃圾可以作为植物的养分，可以掩埋后被植物分解吸收）灰色分类垃圾箱（灰色分类垃圾桶代表其他垃圾，包括烟头、贝壳、一次性餐具、污染纸张、纺织品、尘土、女性用品等，难以回收的废弃垃圾，这种垃圾一般会被焚烧、掩埋等处理）。
Classified garbage bins are divided into different colors, which are the national unified labels. Domestic garbage is divided into several categories. Our common classified garbage bins have four colors: red classified garbage bins, (red represents harmful substances, including expired drugs, used batteries, paints, cosmetics, etc.). Non-recoverable substances with definite pollution hazards.) Blue classified garbage bin, green classified garbage bin, green classified garbage bin, kitchen garbage and kitchen waste garbage can be used as nutrients of plants. Gray classified bins (gray classified bins represent other garbage, including cigarette butts, shells, disposable tableware, polluted paper, textiles, dust, women's articles, etc.), which are difficult to recycle. This kind of garbage is usually incinerated and buried.