It is of great ecological and economic significance to use ornamental plant materials to repair heavy-metal-contaminated soil In order to explore the differences of tolerance among Hydrangea cultivars under high lead stress 41 Hydrangea cultivars were used as experimental materials in this study Through soil pot experiments 6 indexes were comprehensively analyzed by membership function and the comprehensive evaluation value D value of lead tolerance was obtained Cluster analysis was carried out to identify high lead-tolerant Hydrangea cultivars The results showed that high concentration of lead stress inhibited the plant height and biomass of most Hydrangea cultivars Different cultivars have different enrichment and transport of lead 41 Hydrangea cultivars were divided into 3 types by cluster analysis including 2 high lead tolerance cultivars 27 medium lead tolerance cultivars and 12 low lead tolerance cultivars The high lead-tolerant cultivars ‘Xue Jingling’ and ‘Jia cheng’ of Hydrangea performed well in both growth morphology and heavy metal enrichment They had strong remediation potential for Pb-contaminated soil and could be used as alternative options for ornamental plant remediation materials