Abstract: Elaborated in the paper are the characteristics of the UOE crimping press and dies thereof as used by a certain company.And the main aspects concerning the said dies are detailed，including service status，quality requirements for the material， and manufacture-related difficulties.The new type high-Cr alloy die-purpose steel，and corresponding casting process for manufacturing the dies which meet the requirements for the crimping process have been developed based on an analysis of the characteristics of the imported Germany-made dies which involves chemical composition，surface hardness and geometric size，etc.The results from inspections of the new die show that there is little difference between it and the above mentioned Germany-made die in terms of surface hardness，tensile strength and impact toughness.After the trial lot production of the newly-developed crimping die，no remarkable quality defect is found with the product，which means it is worth substituting the imported similar product.