Abstract: By summarizing and analyzing the hydroponic techniques in the world, especially their unusual oxygen-enrichment methods and techniques, the technique of DSS was firstly put forward in the tomato infinitive-growth-typed cultivated by deep nutrient solution flow. The DSS used such oxygen-enrichment principles and ways as liquid-drop, liquid-flow, root-revealed and root-wet, etc. Checked by tomato planting experiments, using the DSS would increase plant respective growth rate, accelerate leaves and stem burls to grow, strength the activity of roots and improve the growth and development of the root system. If the DSS was improved in the future, it was believed to be well used in large area practical production, besides the infinitive-growth-typed cultivated by deep nutrient solution flow culture.