Soilless vegetables are not harmful to the human body, and eating them in moderation can also provide the body with certain nutrients. Soilless culture is a new technology of crop cultivation, conventional cultivation is cultivated in the soil, while soilless cultivation is to plant vegetables in a water solution dissolved in minerals or some kind of cultivation substrate with nutrient solution for cultivation. Soilless cultivation of crops can grow normally, this way not only to meet the crop on the nutrients, water and other conditions of the demand, but also in these conditions required to be adjusted, in favor of better growth of vegetables. Soilless cultivated vegetables can be eaten, and will not cause harm to the human body, but also for the human body to supplement some of the nutrients needed.