Abstract: ‘Caiyu’is a new Chaenomeles crabapple cultivar which has been selected from the seedlings of Chaenomeles‘Toyonisiki’. The cultivar has one trunk，and plant architecture is half-spread. The young leaves are greenyellow，the edge is chocolate，with lappaceous serrations；the old leaves become dark green，and the edge is sharply serrated. The flowers are usually in groups of three，semidouble petals. The colors of petal are light red or green-and-white at the initial stage，all of them turn pink at the mid to late stage. Blooming period lasts one month. The pistil is generally impotent，so it bear few fruit. Flower characters are stable，the cultivar has strong resistance，high grafting survival rate，fast-growing and high ornamental value.

Key words: crabapple, cultivar