Abstract: To solve the problem of high nitrate content in leaf vegetables, this research used NFT (nutrient film technique), different kinds of leaf vegetables yield and quality was tested by using different nutrient solution formula. The results showed that lettuce yield was the highest by using the nutrient solution of formula 3（the highest content of Mg2 ）, each crop area could reach 17556 kg/hm2，the relative increase rate reached 133.3% and 171.42% respectively which was compared with other two kinds of formula. The root volume, content of chlorophyll, total fresh weight, leaf number, plant dry weight of lettuce index was better by using formula 3 than the other two kinds of formula. Quality testing results showed that nitrate content of lettuce was 745.46 mg/kg which was the lowest by using nutrient solution formula 3, and nitrate content of lettuce reduced by 77.01% and 79.78% respectively than the other two kinds of formula (the highest content of K and Ca2 ). cultivation Vc content of the lettuce was the highest by using nutrient solution formula 3 which increased by 22.36% and 78% respectively compared with other two kinds of formula, and the sugar acid ratio increased significantly which could improve the quality of lettuce effectively. Comprehensive results of quality indicators, biological indicators and yield, we obtained formula 3 nutrient solution which was the most suitable for cultivating leaf vegetables such as lettuce, rapeseed and leaf lettuce, it was the optimum leaf vegetables hydroponic nutrient solution formula. Key words: Leaf Vegetables; Hydroponic Nutrient Solution; Low Nitrate