Abstract: The evaluation of green mine is an important component of green mine construction.It is of great practical significance to carry out the internal evaluation of green mine and improve the efficiency of internal evaluation.According to the standards, the green mine evaluation system is established and the questionnaires is designed to collect data, applying the method of factor analysis, the green mine construction levels of 14 coal mines of Pingmei Co., Ltd. are evaluated.Aiming at the shortcomings of the traditional factor analysis, a comprehensive evaluation method using the factor score coefficient is proposed.Compared with the traditional factor analysis method, the evaluation method based on the factor scoring coefficient is simpler and more practical, and has certain popularization value.