Abstract: Taking the“Green Sword”pole bean as research object，a completely random experiment was carried out on double factors of water and fertilizer，setting 2 irrigation levels and 4 fertilizer levels，and taking local irrigation and fertilization habits as the control，a total of 9 treatments were conducted to study effects of water and fertilizer on yield and quality of pole bean in solar greenhouse in northwest plateau of Hebei Province.Results showed that when irrigation level was the same，the yield of leguminous bean first increased and then decreased with increasing of fertilizer amount，and the yield of W1F3 reached the highest.Compared with local irrigation and fertilization（CK），the yield increased by 3-42% and the rate of good quality increased by 2-16%，water use efficiency（WUE）was increased by 40-00%，while water and fertilizer were saved by 44-05% and 37-00% respectively.Effects of irrigation and fertilization level and their interaction on crude fiber content of the fruit was not significant.Considering effects of water and fertilizer on yield and quality，the following water and fertilizer system was recommended in the study area：irrigation once at seedling stage，with irrigation quota of 150 m3/hm2 and no fertilization; irrigation once at pumping vine stage，with irrigation quota of 180 m3/hm2and the compound fertilizer of 180 kg/hm2，seedling crouching at early flowering stage; nine irrigation at pod setting stage，with irrigation quota of 180 m3/hm2 and irrigation cycle of 6 days，fertilization with watering three times，with high potassium compound fertilizer of 180 kg/hm2 and calcium nitrate of 75 kg/hm2 applied each time.