The H. pylori test is simply divided into two major tests, one non-invasive and the other invasive. The most common non-invasive test is the breath test, which draws blood for antibody testing. The breath test is a clinically accurate and simple method that recommends that patients come to the hospital in the morning on an empty stomach, take a carbon-13 or carbon-14-labeled urea capsule after the doctor’s order for H. pylori testing, wait quietly for about 20 minutes, blow hard in a special gas-collection card, and then go on the machine to read the gas-collection card’s The final indicator of exhalation is then read on the machine. Therefore it is very simple and convenient, and the results can be known in about 30 minutes; blood sampling antibody test may not accurately reflect the real-time H. pylori infection, invasive test is the patient needs to do gastroscopy test, by taking pathological biopsy, on the one hand, pathological biopsy can be bacterial culture, mostly used for laboratory diagnostic testing, to observe whether H. pylori is resistant and sensitive to certain bacteria, generally for scientific research, other methods can be performed rapid urease test or pathological detection methods, these above invasive and non-invasive tests are available in the clinic to detect H. pylori.