It is extremely effective that the mineral or fluid inclusions can preserve the information of either the chemical environment, temperature or pressure, which is during the growth of the host minerals. A good correlation can be proved between the molecular vibration of quartz inclusions in garnet and the ambient pressure, which is during high pressure metamorphism. It has been proposed, a quartz inclusions elastic Raman shift barometer, which is according to this characteristic. The principle is to calibrate the residual pressure by using the microlaser Raman spectrometer analysis of quartz inclusions and then recover the entrapment pressure conditions by combining the elastic modeling of quartz and garnet host. It belongs to the mineral physical spectroscopy barometer. Here, we introduce the basic principle and method of calculating metamorphic pressure by using the Raman shift of quartz inclusion and analyze the applicable conditions and limitations of the difficult method. The quartz inclusion Raman shift barometer is an effective method to restore the formation temperature and pressure of metamorphic rocks and has a wide application prospect.