Abstract： Objective： To observe the effect of the therapy of Dingxuan tang combined with otolith- repositioning for subjective benign paroxysmal positional vertigo(S-BPPV). Methods：A total of 100 patients with S-BPPV were selected and divided into the control group and the observation group according to the random number table method. The control group was treated with otolith- repositioning， and the observation group was additionally treated with Dingxuan tang based on the treatment of the control group. The score of Dizziness Handicap Inventory(DHI) and Chinese medicine syndrome score in the two groups were compared before and after treatment，and the number of cycles of otolith-repositioning in the two groups were recorded；the clinical effect was evaluated and the recurrence of vertigo was recorded. Results：The average number of cycles of otolith- repositioning per day in the observation group was lower than that in the control group，the difference being significant(P＜0.05). Before treatment，there was no significant difference in the comparison of DHI score and Chinese medicine syndrome score between the two groups(P＞0.05). After treatment， DHI score and Chinese medicine syndrome score in the two groups were lower than those before treatment，and the two scores in the observation group were lower than those in the control group，differences being significant(P＜0.05). Six months after treatment，the recurrence rate was 6.38% in the observation group，lower than that of 20.93% in the control group，the difference being significant(P＜0.05). The total effective rate was 86.00% in the control group and 94.00% in the observation group， there being no significant differences(P＞0.05). Conclusion： The therapy of Dingxuan tang combined with otolith- repositioning for patients with S-BPPV，can effectively lessen the vertigo symptoms，reduce the repositioning times and recurrence rate，and improve the quality of life.