Abstract: ‘Dangshan Xinsu’is a new pear cultivar which selected from the mutant of‘Dangshan Suli’. It matures about 15 days earlier than‘Dangshan Suli’. The fruit sharp is suborbicula，and fruit-shape index is 0.95. The average fruit weight is 370 g. Soluble solids content is 12.6%. Total acid content is 0.079%. Flesh firmness is 6.4 kg · cm-2. Stone cell group（diameter > 0.25 mm）content is 1 778 mg · kg-1. The flesh is white，sour-sweet，with tiny aroma，good flavor，and excellent quality. The cultivar has strong adaptability，high and stable production.

Key words: pear, mutant, cultivar