Different test methods are used for analyzing Burmese deep lavender color jadeite sample before and after heat treatment. Phase analysis shows that this kind of jadeite is assigned to jadeite jade. X-ray fluorescence spectrometry indicates that the deep lavender color area has more amount of Mn and Fe than the white one. Electron paramagnetic resonance spectra demonstrates that Mn mainly exists in the form of Mn3+ rather than Mn2 + in traditional opinions. Ultraviolet-visible absorption spectrum reveals that wide absorption band centered at 572 nm can be attributed Fe2 + ion couple-electron pair 5A1(5T2) →3T1(3H) transition and the charge migration of Fe2 +-Fe3 + ion pair,which are the main reasons for deep lavender jadeite coloring. The superposition of 6A1(S) →4T2(G) and 6A1(S) →4T1(G) d-d electron transition at 545 nm of Mn3 + ion can be considered as another factor of lavender jadeite coloring.