A field experiment was conducted to investigate the effects of combined application of mineral organic fertilizer and chemical fertilizer, reduced on WUE and fertilizer use efficiency, it was using trail design of single factor. The results showed that: yield, WUE and nitrogen, phosphate use efficiency at combined application of mineral organic and fertilizer significant higher than no mineral organic. When combined application of mineral organic and fertilizer, the yield at fertilizer reduce 15% and 30% were 13948 kg/hm2, 12782 kg/hm2, the WUE at fertilizer reduce 15% and 30% were 1.74 kg/m3, 1.62 kg/m3, the nitrogen use efficiency at fertilizer reduce 15% and 30% were 35.97%, 30.04%, the phosphate use efficiency at fertilizer reduce 15% and 30% were 25.93%, 21.55%. There was no significant between combined application of mineral organic, fertilizer reduce 15% and local best fertilization treatments. This experiment result have already prove is viable in produce practice that fertilizer reduce lower 15% compares wither current level under the condition of combined application of mineral organic reasonable.