Stimulation technology is the key technology in unconventional gas exploitation, the unconventional gas geological condition is complicated and special, and seriously restricts the development and utilization of unconventional gas, and challenge the backward technology. Chinese unconventional gas stimulation technology development and history is studied in this paper, so far, the study of tight gas sandstone stimulation has formed relatively perfect technology system; the coal bed methane stimulation has conducted a series of experiments and research; and the shale oil and gas stimulation technology is still in the experimental stage, and this technology is not perfect. Through the analysis of the research present situation of unconventional gas stimulation technology home and abroad, we propose the problem and research direction in the unconventional gas stimulation.