In order to make the biogas slurry and modern irrigation device combination used on the greenhouse cultivation of leaf vegetables,an experiment with lettuce and pakchoi cabbage were conducted to study the effects of biogas slurry with two kinds of irrigation(drip irrigation,sprinkler irrigation) and four kinds of concentration on the quality,yield and the cultivation environmental of leaf vegetables.The results showed that drip irrigation and sprinkler irrigation V (biogas slurry)∶V (water) =1∶4 could improve the yield,quality and cultivation matrix environment of lettuce and pakchoi cabbage.As compared with the control ,Vc content increased by 25.23% and 40.00% of pakchoi cabbage and lettuce under the drip irrigation conditions with the content of nitrate were 238 and 122 mg·kg-1,respectively;whereas the Vc also increased by 18.98% and 29.41% under sprinkler irrigation conditions,and the content of nitrate was also significantly lower than the control.The content of heavy metals of those two kinds’ leaf vegetables was lower than those of agricultural product safety and quality pollution free vegetables safety vegetable in requirements (GB 184061—2001) standard.As a source of nutrition,two fertilization methods of biogas slurry significantly reduced pH and EC value with no matrix nutrient,and the content of heavy metal soil below the production safety requirement (GB 15618—1995) standard.