Abstract: In order to evaluate the threshold of phosphorus (P) application rate and improve the utilization efficiency of fertilizers in Baoding region of Hebei Province, a field experiment was conducted to examine the impacts of P fertilization on wheat yield, soil NO₃^--N and nitrogen use efficiency. Results showed that, compared with the CK (P₀), all treatments with P application (P₁, 120 kg·hm^-2; P₂, 240 kg·hm^-2 and P₃, 480 kg·hm^-2) increased the plant height, flag leaf areas and total leaf areas per plant of winter wheat, which was conducive to the accumulation of photosynthetic products. In addition, P application increased the spike number, kernels per spike and yield of winter wheat but slightly decreased the grain mass per 1000 seeds. Of the Pfertilized treatments, P₂ had the highest wheat yield of 6102 kg·hm^-2, which was similar to P₁ but significantly greater than those of P₀ and P₃. Furthermore, P fertilization reduced the NO^₃--N content in top soil layer although the total accumulation of NO₃^- was still rather high. The N grain production efficiencies (GPE_N) and N uptake efficiencies (UE_N) of P₁ and P₂ were similar but greater than the other treatments. The use efficiency (UR_P), agronomic efficiency (AE_P) and partial productivity of P fertilizer (PFP_P) in P₁ were significantly greater than P₂ and P₃. In conclusion, the P application rate of 120 kg·hm^-2(P₁) in this study could be an appropriate threshold in Baoding, Hebei, from the aspects of wheat yield, nitrogen and phosphate use efficiencies and accumulation of soil NO₃^-.