The utility model relates to a chemical engineering technology field discloses a gas liquid reaction system, including gas liquid reaction ware and reaction liquid transfer jar, be equipped with liquid import, liquid outlet, gas feed, gas outlet, media import and media export on the gas liquid reaction ware. Liquid import and the export switch -on of reacting liquid transfer jar, the liquid outlet is put through with the import of reaction liquid transfer jar, the inner chamber of gas liquid reaction ware divide into feed zone, conversion zone and ejection of compact section, separates through the baffle between feed zone, conversion zone and the ejection of compact section, the feed zone is located with gas feed to liquid import, and ejection of compact section is located to liquid outlet and gas outlet, and the conversion zone is located in media import and media export, is equipped with the reaction tube in the conversion zone, and on the both ends of reaction tube were fixed in two upper and lower baffles of conversion zone respectively, the reaction tube fed through feed zone and ejection of compact section. The utility model discloses a gaseous area of contact with liquid is big among the gas liquid reaction system, therefore reaction efficiency is high, and reactant's reaction participation rate is high.