Objective To investigate the application of SRM-IV vestibular function diagnosis and treatment system in benign paroxysmal positional vertigo (BPPV).Methods A data analysis was performed for the patients who were diagnosed with BPPV by the SRM-IV vestibular function diagnosis and treatment system in our hospital from November 2015 to May 2016.Results Among the 104 BPPV patients, 63 (60.6%) had posterior semicircular BPPV, 38 (36.5%) had horizontal semicircular BPPV, and 3 (2.9%) had mixed-type BPPV. There were 32 patients with left semicircular BPPV and 69 with right semicircular BPPV, and the number of patients with right semicircular BPPV was 2.16 times that of patients with left semicircular BPPV. Of all patients, 103 were cured and 1 was improved, and the overall response rate was 100%.Conclusions With the help of 360° repositioning procedure, the SRM-IV vestibular function diagnosis and treatment system can precisely identify the location of canalith and overcome the intolerability of manual repositioning. It has a significant clinical effect and high safety and holds promise for clinical application.