Objective To investigate the clinical features and efficacy of sudden hearing loss with vertigo including benign paroxysmal positional vertigo (BPPV) or non-BPPV and sudden hearing loss without vertigo. Methods From Jan 2018 to Dec 2019, 400 patients with sudden hearing loss were enrolled. They were divided into two groups according to whether accompanied by vertigo or not, 163 cases belonged to the group with vertigo and 237 without vertigo. The group with vertigo was further subdivided into BPPV group and vertigo syndrome (non-BPPV) group. All patients had pure audiometry, acoustic conductance, otoacoustic emission examination. Classification therapy was adopted according to different hearing curves and the hearing effects of different groups were recorded and compared. Results The difference of effective rate between the BPPV group and non-BPPV group was statistically insignificant (P>0.05). The effective rate of the group without vertigo was significantly higher than those of the BPPV group and the non-BPPV group (both P<0.05). Conclusion The hearing effect of sudden hearing loss with BPPV is similar to that of sudden hearing loss with vertigo syndrome (non-BPPV). Vertigo is one of the key factors affecting the hearing efficacy and prognosis.