Crisp Hamimelon originated in the arid and semi-arid areas of Xinjaing and its distributive area 8 years (16 growing seasons) exploration and research on the process of south and north ecobreeding with methods of hybridization, back crossing, nuclear radiation inducement and gene engineering combining with ordinary breeding, 8 improved varieties, and 3 self-breeding series of unisexual flower are successfully cultivated from the parents which come from different ecotype areas. They are suitable to the southeast part of China where it is humid, rainy, and weak-illuminated. With these varieties and technology of soilless cultivation of organic ecotype in the green house, the production of pollution-free and safe melon is surely promising.