Abstract: As the metrological standard for component analysis of geological materials, the geochemical reference materials are frequently used and play an increasingly important role in the quality controlling of analytical results, instrument calibration and method evaluation. Preparation and application of the geochemical reference materials is an essential work to promote the development of technology and methods of geological analysis. With a brief introduction to the preparation process and technical method of geochemical reference materials, it is discussed about the standard requirements and technical methods for sample preparation, homogeneity test, stability test and certification.