Based on the basic requirements of design and manufacturing safety management in relevant standards and specifications for pressure vessels,combined with the successful use experience and latest technological progress of tantalum alloy in the field of pressure vessels at home and abroad in recent years,this paper introduces the necessity and urgency of formulating the enterprise standard for tantalum alloy composite plates and lined vessels,and focuses on the development ideas,content structure,scope of application,and manufacturing technical requirements of the enterprise standard for tantalum alloy composite plates and lined vessels.This has practical guiding significance for the design and manufacturing of tantalum alloy composite plates and lined vessels.