Abstract: In order to analyze the airflow characteristics of the diagonal ventilation network , the theoreti.cal expression of the total ventilation resistance of the simple diagonal ventilation network is establishedbased on the mine ventilation theory and the numerical calculation method. hrough calculation of thecomputer program of the total ventilation resistance of the diagonal ventilation network, it is concludedthat the total ventilation resistance of the diagonal ventilation network is only related to the ventilation re-sistance of each ventilation path, and does not change with the change of the total ventilation volume.Meanwhile , the diagonal ventilation network of the ring rail transportation middle section and mining areais analyzed according to the mining example of non-coal mine with multiple sections and multiple segments mining at the same time. It is put forward that the main control measures of diagonal ventilationnetwork are resistance increase regulation and pressure increase regulation , which denies the feasibility ofincreasing the total ventilation volume regulation of the whole mine, and has a reference for daily ventila-tion management.

Key words:  non-coal mine: mine ventilation: diagonal ventilation network, ventilation resistance, con-trol measures