Promoting LNG cold energy utilization technology and building a multi energy complementary，clean，low-carbon，safe and efficient energy system are an important direction for the development of modern energy systems. This paper investigates and analyses the development status and trend of LNG cold energy utilization at home and abroad，focusing on the high-quality development layout of LNG cold energy utilization technology and clean energy system integration. Through energy matching and integration methods combined with economic and technical feasibility evaluation，this paper summarizes typical cases of LNG cold energy cascade utilization and multi-energy integrated utilization. The complementarity of LNG cold energy with conventional energy sources and renewable energies such as wind，solar and geothermal power has been analysed，along with the integrated utilisation of LNG cold energy in the storage and peak shaving of renewable electricity. It provides a reference for the coordinated development of LNG/ natural gas industry chain cluster and clean energy system. The research suggests to promote the construction of clean energy centers integrating LNG cold energy according to the actual needs and resource endowments of each region，and to develop localized equipment and engineering applications based on innovation driven by key contents such as green transformation of energy structure，equipment manufacturing/facility construction of natural gas storage and transportation，clean resources development and sustainable comprehensive utilization.
Fu et al. (Sun,) studied this question.