关键数据的安全直接关系着现代企业的发展命脉,针对企业关键数据安全的重要性,本文提出了建立信息系统中关键数据的深度防护体系,从信息设备、网络传输和数据加密3个方面论述了关键数据深度防护体系的必要性和可靠性。通过在某大型企业部署深度防护体系,大大增强了关键数据的安全性,同时也大大提高了整个网络与信息系统的稳定性。实践证明该种深度防护体系能有效保障关键数据的安全性。 The key data security is directly related to the development of the modern enterprise lifeblood. In view of the importance of the enterprise’s key data security, this paper puts forward the establishment of a deep protection system of the key data in the information system, from the information equipment, network transmission and data encryption The Necessity and Reliability of Deep Data Protection System. By deploying a deep defense system in a large enterprise, the security of key data is greatly enhanced and the stability of the entire network and information system is greatly enhanced. Practice has proved that the depth of protection system can effectively protect the safety of critical data.