Abnormal swallowing function is often a manifestation of many muscular diseases, and once it occurs it often leads to patients suffering from eating, resulting in malnutrition, further aggravating the manifestation of muscular diseases, and more troublesome is to lead to aspiration, causing pneumonia, and respiratory muscle weakness, leading to pneumonia for a long time, becoming the main cause of death from such diseases, so it is very important to understand the patient’s swallowing function and develop preventive measures to prevent the occurrence of aspiration pneumonia. It is important to understand the swallowing function of the patient and to develop preventive measures to prevent the occurrence of aspiration pneumonia. The main muscle diseases in which swallowing dysfunction occurs are ankylosing myotonic dystrophy, oculopharyngeal myotonic dystrophy, and oculopharyngeal distal myotonic dystrophy, which are also often seen in inclusion body myositis and motor neuron disease. Cerebrovascular disease and Parkinson’s disease are also often associated with abnormalities in swallowing function. After determining the type of dysphagia, it can be resolved by changing the angle of eating, posture and type of object, and some patients need surgical help.