‘Tailü 3’is a new broccoli hybrid，characterized by strong growth potentiality，middle upright plant type，relatively less leaves，long elliptical leaf shape and dark-green leaf color. The curd shows a high round shape with fine-median grained buds and good cold-resistance，while without color changing at low temperature. Simultaneously，it owns good commodity–95 days from plantation to harvest. The cultivar is suitable for open field cultivation in autumn and winter in Zhejiang，Hubei，Yunnan etc，and in summer，Zhangjiakou City of Hebei Province and other northwest regions of China. and autumn in Lanzhou City of Gansu Province with hollow-free stout curd stem. The average fresh weight of curd is 0.66 kg and the total yield is 20 700 kg ? hm^-2. It is a delayed middle maturing cultivar and the growth period is 85