Abstract: In Samandepe gas field,average hydrogen sulphide content in natural gas is 2.6%,carbon dioxide content is 3.19%,major corrosion form is hydrogen sulfide corrosion.In daily production,corrosion inhibitor is injected to hole and pipeline to prevent corrosion.In this paper,the present situation of corrosion inhibitor’s application in Samandepe gas field is introduced briefly,the adaptability of corrosion inhibitor injection is analyzed combining with the production condition.Some suggestions for corrosion inhibitor application in Samandepe gas field are presented.