微机保护在电气化铁道已经得到大面积的推广应用，对保障铁路运输的安全畅通发挥了巨大作用。文中在总结电气化铁路微机保护研制和使用的成功经验的基础上，提出了在研制新一代微机保护时应注意的技术问题。-Computer Protection in electrified railway has been the promotion of large-area applications, unimpeded played a huge role in the protection of the safety of the railway transport. In summing up the successful experience of electrified railway development and use of microcomputer protection based on the technical issues should pay attention to the development of a new generation of microprocessor-based protection.