‘ Liaoqie No.12’ is a F1 hybrid purple eggplant with green petal，developed by crossing‘ 2007P190’as female parent and‘ 2007P195’ as male parent. The plant is of medium maturity. It takes 93 days from sowing to harvesting. The plant has strong growth vigor，and is 118.2 cm in height. Its fruit is of long rod shape. The average single fruit weight is 243.9 g. Its fruit is 23.6 cm in length，5.8 cm in diameter with good commodity. The fruit peel is shining dark purple in color. It can yield about 63 t·hm-2. It is suitable for cultivation in protected fields in Liaoning，Hebei，Shandong Provinces，etc. regions.