Compostable waste is fast rotten waste such as food scraps, vegetable scraps, rinds and etc. It does not include a plant or animal carcasses from the experiments in the laboratory. This type of waste is advantages, if we know the way to manage it. The way to manage waste is separation waste. We can separate compostable waste in green garbage. Separation waste, avoid mixed with other waste. If the waste mix will make it become useless junk, stink, and may be a reservoir of bacteria. Therefore we should not discard compostable waste with general waste and hazardous waste for able to bring compostable waste to make compost, which is useful in helping to increase the quantity of soil.