Abstract: Grouting is composed by two independent processes, pore-forming and grouting. Pore-forming is composed by a suit of drilling tool and pipe while grouting composed by injection pipes. In some construction areas both drilling team and grouting team had to bring into operated. Pore-forming and grouting combined into one process can improve both quality and efficiency of grouting after process improvement. The principle of drilling and grouting integration technology and its technological process and characteristics were introduced in this paper and also the engineering practice was illustraied.