Abstract: Flower color inherent and its influence on the related characters about plant, flower and fruit in eggplant were studied with the white-flowered mutant of XIANLVQIE and its maternal group. The result shows that, flower color of eggplant was control by an double complete dominance gene “Col—col”, purple flowers was complete dominant to white flowers. When purple-flowered individual of inherent character stable cross with white-flower, F1 group was purple flower, F2 group was separated to purple and white flower with 3:1. When F1 individual cross with white-flowered individual, the offspring was separated with 1:1. white-flowered group is better than purple flowers group in many characters. It can be used directly as cultivar, and can be used as a mark to appraise purity of hybrid eggplant.