To explore the diversity of floral organ phenotypic traits in tulip germplasm resources， a study was conducted on 60 tulip cultivars， assessing nine district floral organ phenotypic traits. The genetic diversity of these traits was evaluated by principal component analysis and cluster analysis， providing a reference for the evaluation， identification and utilization of tulip germplasm resources. The results revealed significant variation in five quantitative traits （petal diameter， petal cross diameter， stigma length， stigma circumference， and stigma diameter） and four quality traits （corolla main color， pollen color， stigma shape， and flowering period）. The variation coefficients of corolla longitudinal diameter and corolla transverse diameter were 19.35% and 23.41%， respectively， indicating a relatively large variation between cultivars with a high degree of dispersion. However， the variation in stigma length， stigma circumference， and stigma diameter was relatively small， with a concentrated distribution and lower degree of dispersion. 92% of the tested varieties have a triangular prism shaped stigma， while five cultivars showed variation in stigma shape. The proportions of early， middle， and late flowering cultivars are 20%， 68%， and 12%， respectively. Principal component analysis extracted a total of five principal components with a cumulative contribution rate of 85.179%. By establishing a comprehensive evaluation model for the phenotypic traits of tulips， 12 cultivars with a comprehensive score above 0.5 were identified. 'Candy Prince' and 'Foxy Foxtrot' stood out with higher scores， being middle-flowered cultivars characterized by long and thick stigmas and excellent overall floral organ traits. Cluster analysis categorized the 60 tulip cultivars into four groups. Group I comprised of 51 cultivars， primarily large and colorful tulip varieties with thick stigmas and superior overall performance. Group II included only one variety ‘Purple Dream’， characterized by slender corolla and thick and long stigma. Group Ⅲ consisted of 6 cultivars， characterized by short stigma and general performance of floral organ traits. Group Ⅳ included 2 varieties， notable for their stigma shape variation. These results can support the classification of tulip cultivars and the exploration of their phylogenetic relationships from the morphological perspective. This study provides a reference for further development of excellent floral organ ornamental traits， germplasm innovation， and variety improvement in tulips.