Abstract: Through the sample analysis of Changhua chicken-blood stone and Balin chicken-blood stone, the present paper puts forward the quality evaluation indexes of chicken-blood stone, that is, quality or specification, "blood"colour, "blood" coverage, "Di", "Di"colour, and clarity, in which the classification indexes include"blood"colour, "blood"coverage, "Di"and clarity, and the description indexes include quality or specification, "Di"colour. These six indexes can comprehensively describe chicken-blood stone quality level, providing scientific reference for chicken-blood stone quality evaluation. Meanwhile, the quality evaluation and grading methods are put forward in this paper. GemDialogue colour identification system is used to describe"blood" colour of chicken-blood stone samples, the grid method is used to measure the"blood" coverage, and the identification of gemmological characteristics, X-ray powder diffraction analysis and infrared spectroscopy analysis are used to measure the level of"Di". The classification simulation of Changhua and Balin chicken-blood stone is carried out to validate the practicality of quality evaluation system. The results of