The relationship between Japanese traditional medical diagnosis and examination of equilibrium was studied. Spontaneous and positional nystagmus, and the results of sinusoidal rotatory test and Shellong test, which might be strongly related to the active stage in vertigo, were not relevant to Japanese traditional medical diagnosis. However, it is likely that the abnormal findings in caloric stimulation test or optokinetic nystagmus test which suggest the malfunction of the peripheral or central vestibular system are partly related to Japanese traditional medical diagnosis.