Tangqiuza No.8 is a new cucumber F1 hybrid developed by crossing inbred line C17167 as the male parent and stable inbred line L201 treated with proton beam(H+)as the female parent.Its whole growth period is about 100 days when planted in the spring and autumn greenhouse and open filed in Tangshan area.The first female flower node is 3-5 on the main vine,and then female flowers were produced in each node.Each plant can produce 15-20 melons.Both main vine and lateral vines can bear melons.The melon is of stick shape,and 18.0-20.0 cm in longitudinal diameter,and 3.0-3.5 cm in cross diameter,and more than 1 cm flesh in thickness,the single melon mass is 180 g.Its yield is 5 139.4-7 021.9 kg·667 m-2.It is suitable for planting in spring and autumn greenhouse and open field of Hebei province.