First, the plot selection of wax gourd is cross-pollination crops, insecticide or wind pollination. In order to maintain pure varieties, the farming fields should be more than 1,000 meters away from other melon fields. Second, artificial selection seedlings before sowing, need to be selected. Choose full, fat, and well-shaped seeds to avoid weak seedlings. To control pests and diseases at the seedling stage, strong and strong seedlings that meet the characteristics of varieties should be used for planting purposes. During the vegetative growth period, plants that are robust, free of pests and disease, few branches, short internodes and female flowers should be selected as seedlings. For fruit ripening, fruit shape should be selected, and the fruit color should be in line with the characteristics of the variety. The fruit with high yield, good quality, and no pests and diseases should be used as seed melon. Third, fertilizer and water management Seed field management should be finer than the general production field, water and fertilizer should be sufficient supply, increase phosphorus, potassium fertilizer, promote healthy growth of plants, ensure the normal development of fruits, seeds enrichment. During the rainy season, drainage should be taken care of to prevent the occurrence of overdose. The density of seed fields should be slightly thinner in order to facilitate ventilation and light transmission to ensure fruit ripening. Fourth, harvest melon should be fully mature, generally less than the consumption of food melon late harvest for 10 days to ensure that the seeds are substantial. After harvesting, the melons are cooked for about 7 days in the room to make the seeds full and full. The ripened melons were cut open with a knife, the seeds washed, dried and stored.