Soil moisture and nutrients are different under different water and fertilizer conditions, which will affect crop growth and yield. In this study, water consumption, growth index, yield under different treatments were measured and analyzed in order to investigate the effect of coupling of water and fertilizer on grape growth and water consumption and select the optimal ratio of water and fertilizer. The results show that grape water consumption of different treatment both present double-peak

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... e in the whole growth period, new shoot growth period and fruit enlargement period are two peak of water consumption. The irrigation 6000m 3 /hm 2 , nitrogen application 211.5kg/hm 2 is most favorable for the growth of plants; Water and fertilizer combination value of the highest yield: X1-irrigation=6345.5(m 3 /hm 2 );X2-the amount of nitrogen=240(kg/hm 2 ) ;water and fertilizer combination value of the best quality:X1-irrigation=5171.25(m 3 /hm 2 );X2-the amount of nitrogen=211.5(kg/hm 2 );In condition that much water and less fertilizer, fertilizer use efficiency is the highest, reached 42.6%, While fertilizer use efficiency of less water and much fertilizer treatment is the lowest, 23.45%, From the economic point of view, treatment 3: irrigation 6000m 3 /hm 2 , N 193.5kg/hm 2 is the optimal combination. International Conference on Civil, Transportation and Environment (ICCTE 2016)