Helicobacter pylori can be transmitted to children, the main ways of infection are: 1, mouth and mouth: such as the elderly will chew food and then feed the child, or to feed children, drink water when they first oral test, and then give the child to drink. This way is the most common way of infection, so parents should not give children chewing food; 2, stomach and mouth: refers to dietary hygiene, it is recommended to wash hands before and after meals, pay attention to the living environment hygiene, can reduce the rate of infection, at present, China’s pediatric infection rate has reached 30%-40%, overall higher than abroad.