This product contains the consumables and preservation solution required for feces collection and preservation. Each tube of preservation solution can hold up to 0.5 g feces sample. The preservation solution can store the DNA of host and microorganism in feces at room temperature for at least 2 years, and can be stored at -20°C and -80°C for a long time, and can effectively prevent the change of microbial species in samples under room temperature preservation conditions. This product is simple and convenient to use, and can be widely used in hospitals, research institutes, families and other normal temperature conditions of stool sample collection and preservation.