Abstract: In the western part of our country the Gobi desert is most dry area,where drilling engineering is difficult and the cost is high.A truck mounted foam-drilling equipment is researched and produced in order to involve this problem.Meanwhile,a suitable foam drilling equipment is researched using related foam drilling technology.With this set of equipment in the dry and loose over-burden area never occur collapse accident during drilling operation.The mechanical drilling velocity of equipment is above 4 m/h and coring rate is near 100% in the fracture developed sandstone area.The benefit of this equipment is obvious.