Abstract: Through the analysis of main factors which influence the ventilation system choice, hierarchical evaluation model of multilevel on ventilation scheme choice was established. Weight value of each scheme was confirmed by analytic hierarchy process, optimal scheme was obtained, and consistency check was made. Through the practical application in ventilation scheme optimization selection of a mine, it proves that this result is realiable.

Key words: Analytic hierarchy process, Ventilation system, Scheme optimization, Weight value