Speaking spittle is mainly caused by the following three reasons: First, the patient has a misaligned bite, misaligned teeth, or there are gaps between the teeth, the patient has periodontitis, the teeth are shifted in a fan row, these conditions may lead to speaking spittle, need to be corrected by timely orthodontic treatment. Second, the patient’s glandular secretion is too vigorous, mainly caused by the physique, there is no way to solve. Third, the patient’s oral environment and tissues are normal, and there is no problem with the teeth alignment, but they are not trained well in learning pronunciation in the early stage, the patient should practice diligently, and can slow down the speed of speech appropriately to get effective treatment.