Abstract: As an important neutron absorber, a large number of boron exist in the first circuit of nuclear power plant. It is necessary to measure the different boron concentration during the study of the Nuclear power plant radioactive waste. In this paper, four kinds of boron detection methods are compared and their advantages and disadvantages are analyzed. The result shows that national standard of curcumin method is only suitable for detecting low concentrations of boron (<1.2 mg/L); Mannitol titration method is only effective for high concentrations of boron (>1 g/L); Azomethine-H acid colorimetric method is suitable for a wide range of boron concentration and has a high accuracy, but the operation is complicated and the developer need to be kept away from light. The operation of using ICP-OES detecting boron concentration is simple and quick, which is suitable for a wide range of boron concentration. The accuracy and precision can meet the testing and analysis requirements.