Abstract: ‘Guoli’is a new medium maturing plum cultivar，bred from the cross of‘Longyuan Qiuli’בBlack Amber’，with an oblate fruit shape，fuchsia skin，and crisp，juicy，frangent，orange yellow flesh. The average weight，solube solids，soluble sugar and vitamin C content and frimness of the singe fruit are 50.3 g，14.7%，10.75%，24.8 μg ? g-1，4.6 kg ? cm-2 respectiverly. The cultivar‘Guoli’can be cultivated in Haicheng of Liaoning Province and other plum producing areas in the south of Haicheng with 25 t ? hm-2 yield during the full fruit stage.

Key words: Prunus, cultivar, breeding, medium maturing