Abstract: The low temperature gas-liquid separator combines aerodynamics, thermodynamics and fluid mechanics theories to make a compact gas conditioning process. With a small volume, no rotating parts and requiring no chemicals, allowing for unmanned operation, it is environmentally and high efficient new revolutionary gas-processing separator. Based on the introduction to its factions and characteristics, by comparing with the conventional natural gas-conditioning systems, in addition, the analysis of its working principle and further theoretic research and technical development tasks are introduced in the article.