OBJECTIVE: Based on evidence-based pharmacy, to evaluate the effectiveness and safety of Qianglidingxuan tablets (capsules) combined with Betahistine in the treatment of vertigo. METHODS: Computer searched Embase, PubMed, the Cochrane Library, Wanfang database, CNKI and China Biomedical Literature Database, and included Qianglidingxuan tablets (capsules) combined with betahistine in the treatment of vertigo in randomized controlled trials [the study group plan is Qianglidingxuan tablets (capsules) combined with betahistine treatment, the control group was treated with betahistine alone], the retrieval time was from the establishment of the database to June 2021. After 2 researchers extracted data, selected literature, and evaluated the risk of bias in the included literature, Rev Man 5.4 software was used to conduct a meta-analysis (Meta analysis). RESULTS: A total of 11 randomized controlled trials were included, including 956 patients (478 patients in the study group and 478 patients in the control group). Meta-analysis results show that, in terms of effectiveness, the total effective rate (OR=5.19, 95%CI=3.33-8.10, P <0.000 01) and significant rate (OR=2.09, 95%CI=1.57-2.78, P<0.000 01), recovery rate (OR=3.75, 95%CI=1.86~7.55, P=0.000 2), vertigo symptom score (MD=-4.40, 95%CI=-4.82~-3.98, P<0.000 01 ), vertigo disorder scale score (MD=-10.57, 95%CI=-11.92~-9.22, P<0.000 01), plasma viscosity (MD=-0.25, 95%CI=-0.32~-0.17, P<0.000 01), left vertebral artery blood flow velocity (MD=4.56, 95%CI=3.38~5.74, P<0.000 01), right vertebral artery blood flow velocity (MD=4.37, 95%CI=3.85~4.90, P<0.000 01), basilar artery blood flow velocity (MD=3.49, 95%CI=2.68~4.31, P<0.000 01), endothelin 1 level (MD=-29.72, 95%CI=-31.29~-28.15, P<0.000 01), the level of calcitonin gene-related peptide (MD=6.21, 95%CI=5.43~6.99, P<0. 000 01) and the ratio of endothelin 1/calcitonin gene-related peptide (OR=-2.01, 95%CI=-2.38~-1.63, P<0.000 01) were significantly better than the control group, and the differences were statistically significant; In terms of safety, there was no significant difference in the incidence of adverse reactions between the two groups of patients (OR=0.59, 95%CI=0.14~2.53, P=0.47>0.05). CONCLUSION: Existing evidence shows that Qianglidingxuan tablets (capsules) combined with betahistine are safe and effective in the treatment of vertigo, which has significant advantages over betahistine alone. Due to the limitation of the number and quality of included studies, the above conclusions need to be verified by more high-quality randomized controlled trials in the future. [ABSTRACT FROM AUTHOR]