Abstract: A brief introduction to the series of classified protection standards of cybersecurity released in 2019, Classified Protection 2.0 of Cybersecurity for short, is made and the orientation and major functions of the security management center defined in the standards is outlined. To deal with the current situation of railway ticketing system, a preliminary design of the security management center for the railway ticketing system is given based on those standards, which aims to realize centralized control over network security of the system and meet the requirements of Classified Protection 2.0 of Cybersecurity.