In order to promote application of the new type fertilizers, increase crop yield and reduce environmental pollution, the research explored effects of humic acid nitrogen fertilizer on corn and wheat yield, nitrogen absorption and utilization, and nitrogen distribution and loss in soil. The results showed that application of activated humic acid fertilizer and conventional mixed humic acid fertilizers could significantly promote corn and wheat yield, increase nitrogen utilization ratio, increase nitrogen residual content, reduce nitrogen loss amount, increase nitrogen surplus and net nitrogen mineralization, and promote soil nitrogen absorption. Activated humic acid fertilizer was better than conventional humic acid fertilizer. The results showed that compared with common urea, the activated humic acid fertilizer and conventional mixed humic acid fertilizers showed these effects: Corn yield were increased by 20.6% and 9.8%, respectively, and wheat yield were increased by 50.5% and 19.2%, respectively; In corn growing season, the nitrogen utilization rates were increased by 5.8% and 3.4%, respectively, while in wheat growing season, the nitrogen utilization rates were increased by 22.7% and 8.6%, respectively; In corn growing season, the nitrogen loss rates were reduced by18.3% and 10.9%, respectively, while in wheat growing season, the nitrogen loss rates were reduced by 20.2% and 6.3%, respectively; In corn growing season, the soil nitrogen residual rates were increased by 12.5% and 7.5%, respectively, while in corn growing season, the soil nitrogen residual rates were reduced by 2.7% and 2.2%, respectively. Application of humic acid fertilizer can improve the distribution of nitrogen in the soil, which therefore can be better satisfy crop root fertilizer characteristics.