From the discovery and preparation of metallic mercury superconductors to nickel-based superconductors, the study of the physical properties and microscopic mechanisms of superconducting materials has greatly promoted the development of condensed matter physics. The development of practical high-temperature superconductors based on new preparation technologies plays an extremely important role in the fields of strong and weak electricity. As a new means, high-pressure experimental technology has become one of the powerful tools for exploring novel superconductors and increasing the superconducting transition temperature (Tc) of superconductors. This paper takes three high-temperature superconductors H3S, LaH10 and HgBaCuO prepared by high pressure and high temperature as the objects, systematically summarizes the research progress of using high-pressure technology to control the superconductivity of high-temperature superconductors, explains the internal organization evolution of high-temperature superconductors under high pressure, clarifies the preparation ideas of practical high-temperature superconductors and the regulation mechanism of high pressure on their organization and superconductivity. The following main conclusions are drawn through analysis: high pressure helps to prepare LaH10, a hydrogen-rich compound superconductor with a special crystal structure, so that it can obtain a higher superconducting transition temperature; at the same time, high pressure can also affect copper oxide superconductors in a similar way to changing doping, thereby changing their superconductivity. High pressure technology is an effective way to obtain high temperature superconductors with special crystal structures (layered and cage). This paper reviews and analyzes the preparation technology of high temperature superconductors with high superconducting transition temperature and its progress, which can provide theoretical basis and experimental basis for the preparation of new high temperature superconductors by high pressure physics experiments.