Deglutition is one of the basic physiological functions of humans. The surgical treatment of oral cancer can cause impairment in swallowing functions and even dysphagia in serious cases. Currently, there are many types of methods for assessing dysphagia, including bedside evaluation, scale evaluation, radiographic assessment, and stress or electromyographic evaluation during swallowing. However, each of these methods has advantages and disadvantages, and there is no uniform standard. This article briefly introduces the current status of methods for assessing dysphagia related to oral cancer.