o analyze the clinical manifestations and related test results of definite vestibular migraine (dVM), optimizing it's diagnostic criteria. Methods: According to the diagnostic criteria of the Bárány Society, 42 dVM patients admitted to our hospital were included. Their clinical data were retrospectively analyzed. Results: The age ranged from 24 to 68 years, with an average age of (48.9±11.9) years. The male-to-female ratio was 1:4.3. 38.1% (16 cases) were vertigo induced by head movements and 61.9% (26 cases) were spontaneous vertigo. 64.3% (27 cases) had a duration of seizures longer than 1 hour. 73.8% (31 cases) were non-aura migraines and 54.2% (22 cases) of patients had migraine onset earlier than vestibular symptoms. 81.0% (34 cases) of patients had photophobia and photophobia. 50.0% (21 cases) had motion sickness and 26.2% (11 cases) had hearing impairment. 33.3% (14 cases) had unilateral semicircular canal impairment after temperature test and 40.5% showed temperature test intolerance. 30.9% (13 cases) of patients with dVM had abnormal central eye movements. 38.1% (16 cases) had abnormal immune-related indicators including 10 cases (62.5% ) had serum thyroid antibodies. Conclusion: dVM is more common in women. Vertigo usually occurs spontaneously and symptom duration is longer than 1 h in most instances. Migraine onset occurs earlier than vestibular symptoms, which is often accompanied by photophobia. A history of motion sickness and intolerance in double temperature tests are not rare.