The utility model discloses a mining excavation is the walking prop for the working face, including the back timber, go up advancing jack, under and advancing jack of around can the be relatively vice structure of gliding friction, simple pendulum pole, back support post, preceding support post, shoveling plate, base, preceding, the back support post is all scalable, is in supported condition, when preceding support post is in floating state, goes up advancing jack promotion back timber for roof antedisplacement certain distance when the back support post, lower advancing jack promotes the certain distance forward with shoveling plate, current support post is at supported condition, when the back support post is in floating state, and lower advancing jack spurs the certain distance forward with the base, the utility model discloses a walking prop need not uninstallation walking, does not lead to the fact the roof and supports repeatedly, guarantee the roof not the absciss layer, do not collapse, the utility model also discloses an entry driving machine, efficiency of construction height, low in labor strength, operator are safer, are suitable for popularization and application of containing above -mentioned walking prop.