Abstract: In order to further verify the efficiency of nitrogen application, the effects of combined application of controlled release N fertilizer and common N fertilizer on maize yield, nitrogen utilization and nitrogen balance in black soil of cold region were studied by fixed-site experiment.Five treatments were set up:（1）no N fertilizer（CK）;（2）all commonN fertilizer basal application（BU）;（3）total controlled release N fertilizer basal application（CRU）;（4）farmers practice, thatis 40% BU basal fertilization, 60% BU top dressing（FP）;（5） 60% CRU and 40% BU mixed basal application（MBC）.The results showed that combined application of controlled release N fertilizer with common N fertilizer（MBC） significantly increased maize yield, economic benefit, nitrogen use efficiency（NUE）, reduced N residue in soil profile, and reduced N loss. Compared with FP, MBC treatment increased yield by 6.9%（P＜0.05）, benefit by 27.8%（P＜0.05）, and N use efficiency by 14.7%（P＜0.05）. The accumulation of soil inorganic nitrogen（SIN） in 0-30 cm, 30-60 cm and 60-90 cm soil profiles accounted for 44.8%-51.8%, 32.2%-34.9% and 15.5%-21.6% of total SIN in the soil profile（0-90 cm）, respectively. Compared with FP, in the soil profile（0-90 cm）, SIN accumulation decreased by 10.0%, N loss decreased by 7.1%, and N surplus in soil-crop system decreased by 9.1% when controlled release N fertilizer combined with common N fertilizer was applied at one time basal（MBC）.Compared with BU, CRU had significant positive effects on maize yield, benefit and N utilization, but it was not as good as MBC. Considering the yield, benefit, N use efficiency and N cycling, MBC with a ratio of 6∶4 was the best method for efficient fertilization of maize in this region.