Abstract: The study on the mechanism of the synthetic jadeite jade is carried out by using the solid translation with the chemical material at high pressure and high temperature.The synthetic samples got in the experiment are analysed by using X-ray powder diffraction,infrared spectrometer and polarizing microscope.The results show that the main crystal phase in the synthetic jadeite jade samples is jadeite,and the gemmological characteristics of the synthetic jadeite jade samples are very similar to that of the natural one.