Abstract: There are two kind of techniques of gas recovery by liquid unloading in offshore gas fields, one kind of techniques can be used for a long time in platform such as continuous and interval gas lift, another kind of techniques can be used only for temporary time, such avS solid forming agent and coiled tubing service. Although we have made great progress in gas recovery by liquid unloading in offshore platform, complete set technology has not been formed. Liquid forming agent, plunger lift, small oil pipe and other techniques can't be used for the great limitation in platform. According to the present practices, some techniques have been studied in this article which may be used in the future in offshore gas fields.