Abstract: 【Objective】 To study the effect of biochar application on the growth of maize and phosphorus absorption of different parts of the plant. 【Methods】 Pot experiment was used to study the effects of biochar on maize growth and phosphorus absorption under different fertilization conditions. 【Results】 Under the condition of no nitrogen application, biochar inhibited the accumulation of dry matter in maize, but increased the total amount of plant phosphorus absorption; under the condition of nitrogen application, biochar could significantly increase the biomass of Maize (P< 0.05), the total amount of stem, leaf and grain phosphorus absorption (P< 0.05), but significantly reduce the total amount of root phosphorus absorption (P< 0.05); with the increase of carbon application, biochar could significantly increase the total amount of plant phosphorus absorption (P< 0.05). In addition, phosphorus absorption per plant increased significantly (P< 0.05); biochar treatment could significantly improve the utilization efficiency of phosphorus fertilizer (P< 0.05) and the utilization efficiency range was 20.73%-24.66%, which was 7.99%-30.76% higher than that without carbon application. 【Conclusion】 The application of biochar combined with nitrogen and phosphorus can promote the growth of maize and improve the utilization efficiency of phosphorus.