Mineralogical and spectral characteristics of Dandong green jade samples were studied by using polarizing microscope, electron microprobe (EMP), X-ray powder diffraction (XRD), Fourier transform infrared spectrometer (FTIR), X-ray fluorescence spectrometer and HR-ICP-MS (Element I). The results show that the main mineral of Dandong green jade samples is serpentine and the minor minerals include forsterite, dolomite, brucite, chlorite and illite. Dandong green jade is a kind of serpentinized forsterite skarn.