The invention relates to a molecular specific marker primer and a detection method for Hibiscus varieties of Hibiscus syriacus 'Bricutts', Hibiscus syriacus 'Notwoodone', Hibiscus syriacus 'Sanchoyo' and Hibiscus syriacus 'Notwoodtwo', which are applied to identification of the Hibiscus varieties. The Hibiscus varieties are widely used in gardens, but are difficult to identify from the aspectof phenotypic characteristics. The molecular specific marker primer sequences of the Hibiscus varieties of Hibiscus syriacus 'Bricutts', Hibiscus syriacus 'Notwoodone', Hibiscus syriacus 'Sanchoyo'and Hibiscus syriacus 'Notwoodtwo' are: upstream primer: 5'-CTCTCTCAACTCTCATCGG-3'; downstream primer: 5'-GGAAAAAAAAAAAACA-AAAG-3'. The molecular specific marker primer can be applied to rapid earlyidentification of the Hibiscus varieties of Hibiscus syriacus 'Bricutts', Hibiscus syriacus 'Notwoodone', Hibiscus syriacus 'Sanchoyo' and Hibiscus syriacus 'Notwoodtwo'. The method is simple, fastand accurate, and is an irreplaceable molecular means for identifying Hibiscus varieties by apparent characteristics.