Abstract: ‘Daisu’pear is a new mid-maturing cultivar derived from the cross of‘Whangkeumbae’and‘Dangshan Suli’. The fruit shape is round and the average fruit weight is 353.5 g. The fruit peel is yellow，and the fruit dot is obvious，with no or very little fruit rust. The flesh is yellowish white，crisp，rich juice，sour-sweet and aroma. The content of soluble solids is 12.1% with little stone cell and residue，and the content of titratable acid is 0.17%. The fruit development period is about 120 days，and it ripens in mid-August in Tai’an，Shandong.‘Daisu’is characterized by early fruit，high yield and high comprehensive quality. The yield reaches 17 200 kg ? hm-2 after 3 years of top grafting.

Key words: pear, mid-maturing, cultivar