'Liihua 18'is a new middle early-maturing melon hybrid cultivar by crossing 16159B as female parent and 11B-1 as male parent.The fruit is high round shaped with gray-green peel,evenly and netty streaks.The flesh is green and white,the single fruit weight is above 1.8 kg,the central soluble solids content is above 16%.The whole growth period is about 105 d and fruit developing period is about 45 d of protected spring cultivation in shanghai,the fruit is tolerant to storage and not easy to ferment,and the output is 36 750-39 150 kg·hm-2.It is suitable for facilities cultivation in spring and autumn in Shanghai and Shandong province.