Young children infected with Helicobacter pylori can usually be checked by means of C13 breath test, rapid urease biopsy, etc. Young children can be temporarily observed, and if they have symptoms or a family history of gastric disorders they can be treated by the quadruple method. Young children can be checked for H. pylori infection by C13 breath test, which can be non-invasive and is a safer method. However, some babies may not be able to detect it. And rapid urease biopsy is a type of invasive operation, but is the gold standard for the diagnosis of H. pylori infection. Young children just infected with H. pylori have no specific symptoms, if there are no symptoms can be temporarily observed and followed up to deal with. However, if there are symptoms such as anorexia, diarrhea, abdominal pain, and unexplained iron deficiency anemia, it can be treated with a quadruple method, i.e., the use of omeprazole, bismuth potassium citrate, amoxicillin capsules, and metronidazole, and the use of the medication needs to pay attention to the side effects of the medication such as rashes, nausea, vomiting, and other uncomfortable symptoms. It is recommended that the medication needs to be under the guidance of a doctor, and follow the doctor’s instructions.