High temperature can kill H. pylori, because H. pylori does not tolerate high temperature, in vitro culture requires a temperature of about 37 ℃, if it is boiling about 100 ℃ can kill H. pylori. In addition, some disinfectants often used clinically can also kill H. pylori, so through the gastroscopy test will not be infected with H. pylori, because each gastroscope should be disinfected. There are also some easy ways, such as home disinfection cabinets that are heated to over 100°C, so they can also kill H. pylori. However, the infection rate of H. pylori is still clinically found to be high for the following reasons: 1. Incomplete disinfection, because the dishes in many restaurants do not meet the conditions for disinfection, so it is required to dine in a disinfected environment for gathering; 2. Although the bacteria are killed, if the infection may also be caused by the oral-oral route and fecal-oral route during the gathering. In short, pay attention to the meal system, in addition to try to use boiling water disinfection or home sterilizer to kill bacteria.