In the process of the gas well production of Dongsheng gas field, issues have been existed in drainage gas recovery such as immeasurable liquid, undefined bubble row filling system, difficult drainage of low pressure gas well and difficult production recovery of high liquid well. Based on analysis of existing issues and technical difficulties in this article, measures as pressure and temperature test of downhole choke well, package metering of single-well, "underground heat insulation and ground throttle", pumping drainage gas recovery test and improved construction technology of gas lift have been put forward. Certain understanding and achievements have been achieved about drainage gas recovery of downhole throttling well, which lays a solid foundation for stable and efficient development of Dongsheng gas field, meanwhile provides reference for drainage gas recovery of similar gas reservoir.