Objective To evaluate whether ABCD2 score can discriminate dizziness patients with and without stroke. Methods This retrospective case-control observational study was conducted in 403 hospitalized patients. According to the final discharge diagnosis, the patients were divided into two groups:the stroke group and non-stroke group. The areas un-der the receiver-operator curves and 95%confidence intervals were then generated to estimate the diagnostic value. Re-sults ABCD2 score was higher in stroke group than in non-stroke group. Conclusions ABCD2 score can be used to quickly identify dizziness patients with cerebrovascular diseases.