Swallowing function is deteriorated with age, and swallowing disorders can cause aspiration pneumonia that is the one of main causes of death for elderly. Accordingly, evaluation technique for swallowing function is important. Roughly, these are screening test and instrumental examination. Modified water swallowing test and cough test are valuable screening test for detecting dysphagia. Videofluorography and videoendoscopy as instrumental examination are definitive evaluation for swallowing function. These tests or examinations are useful to evaluate swallowing, but in other words, these evaluations are evaluative method only for swallowing. Therefore, other informations, such as age, phase of disease, nutrition status, dementia, teeth problem, or meal environment, should be taken into consideration when we decide feeding method of patients.