Abstract: The section of mining gateway commonly used the form of semicircle arch, circular arch, rectangle and trapezium. In the actual production, the trapezoidal and rectangular section tends to gain the advantage in advance support. However, roof and surrounding rocks are not controlled easily. Especially in three-soft mining area, the roadway support meets many difficulties. The surrounding rocks of semicircle arch are much more stable than that of rectangular and trapezoidal roadways,and the utilization of cross section tunnel is lower than the circular arch section. But end support can not adjoin roof fully, and advanced support is not operated conveniently. Therefore, circular arch section is the best for mining gateway.