GB/T 17139-1997 is a standard for the determination of nickel content in soil mass, using flame Atomic absirption spectroscopy-tometry, AAS. First, the soil sample is processed through a specific process to make the nickel element into the solution. Then with the help of Flame atomization, nickel atomization is used. Using a spectrophotometer, based on the absorption characteristics of nickel atoms to specific wavelengths of light, accurate measurement Absorbance is calculated according to the standard Linear dispersion to calculate the nickel content in the soil. This standard provides a key technology for soil mass monitoring, helping to evaluate the degree of nickel pollution in the soil, which is of great significance for maintaining the soil ecological environment.