To realize effective nitrogen and phosphorus removal and phosphorus recycle, a new system combining chemical phosphorus removal technology and anaerobic/anoxic/nitration (A2N) process was proposed. Experiments were done to compare the characteristics of nitrogen and phosphorus removal in A2N and A2N-induced crystallization (A2N-IC) processes. The results showed that, when the influent total phosphorus (TP) concentrations were 5.22~8.31 mg/L-1, the TP removal efficiencies of the A2N process and A2N-IC process were 87.4% and 99.6%, respectively. The TP removal efficiency and the stability of A2N-IC process were obviously better than that of A2N process. The ammonia removal efficiencies were 84.8% and 84.4%, and they were nearly the same. The main reason for the high stability and TP removal efficiency in the A2N-IC process was that chemical phosphorus removal provided assistance to the biological phosphorus removal. The product in the induced crystallization reactor was hydroxyapatite. Magnesium ammonium phosphate precipitation could not be formed.