This paper outlines the development history and current status of the drilling techniques， states the roles of drilling techniques for national economy and humans well-being life development. The drilling technique progress keeping up with times and also its undertakings combining itself characteristic with a dependence of geological science and engineering are analyzed and discussed. The reality and feasibility of the AI and green drilling techniques are expounded. The notions to the undertaking and mission of the drilling techniques used the geological science and engineering by way of high efficiency， low-energy consumption， reliability and environment friendly are presented in the paper. As the other sciences and technologies development， the drilling techniques will have to continuously develop， which are practical technologies， and must develop in accordance with practical and realistic， scientific regular patterns and better accomplishment of the mission as a development direction.