Objective: This study aimed to investigate the outcome of adults with benign paroxysmal positional vertigo(BPPV)secondary to sudden sensorineural hearing loss(SSNHL). Methods: A retrospective study was conducted in patients with evidence of idiopathic BPPV or SSNHL with BPPV . All participants were identified and categorized by using the Dix-Hallpike test and roll test, followed by canalith repositioning procedures (CRPs) that were repeated 2 to 3 times. Assessment of the outcome was conducted one-hour and one-week post-CRPs, respectively. Results Six-four adults with BPPV secondary to SSNHL and 328 adults with idiopathic BPPV were included. The posterior canal was the most affected in both groups. At one-hour posttreatment, the cured rate of the BPPV with SSNHL group was 45.31%, which was significantly lower than that of the i-BPPV group (94.82%, P<0.01). At one-week posttreatment, the cured rate of the BPPV with SSNHL group was 66.67%,which was significantly lower than that of the i-BPPV group (98.78%, P<0.01). Conclusions BPPV with SSNHL was associated with poorer outcomes than i-BPPV in the short term.