On 1 July 2015, the National Security Law of the people's Republic of China was adopted at the 15th Session of the Standing Committee of the 12th National people's Congress, and 15 April each year was designated as the National Security Education Day.The National Security Education Day aims at raising public awareness of national security, creating a positive atmosphere of safeguarding national security, enhancing the capacity to fend off national security risks, deepening public understanding of the Constitution, the Basic Law and national security, and fostering a sense of national identity.2026 marks the start of the 15th Five-Year Plan, and the theme of this year's National Security Education Day is “Proactively Align with the 15th Five-Year Plan Follow a Holistic Approach to Development and Security.”The activities of the 2026 National Security Education Day include National Security Education Day flag raising ceremony, open days of disciplined and auxiliary services, National Security Cup awards presentation ceremony of the disciplined services, opening ceremony of National Security Education Day, seminars, school workshops, etc. Meanwhile, community activities in the 18 districts across the territories and different activities organised by relevant Bureaux and Departments are being held in support of National Security Education Day. Some of the activities are as follows: “National Security Education Day” Opening Ceremony cum SeminarVenue: Grand Hall, Hong Kong Convention and Exhibition CentreTime: Live stream by RTHK 32 from 09:30am on 15 AprilOpen Days of Disciplined and Auxiliary Services​To echo the National Security Education Day on April 15, the Security Bureau's 8 disciplined services and auxiliary services will hold open days in such places as their training schools, a museum, headquarters, divisional premises or relevant venue on different weekends from late March to mid-April to deepen the public's understanding of the services as well as their work and achievements in safeguarding national security. Members of the public can register for free admission tickets via the relevant disciplined services' websites. Admission tickets are not required for the open days of the Hong Kong Police Force, the Civil Aid Service and the Auxiliary Medical Service.Members of the public are welcome to visit the websites of the relevant services for more information on the open days, and register to obtain tickets. Successful applicants will receive notifications from the organisers.DateLocationMarch 29 (Sunday)Government Flying Service Kai Tak DivisionApril 11 (Saturday)Hong Kong Correctional Services Museum and Community Education Experience CentreCivil Aid Service HeadquartersApril 12 (Sunday)"Little Grape"-themed park at Harcourt GardenFire and Ambulance Services AcademyApril 18 (Saturday)Immigration Service Institute of Training and DevelopmentHong Kong Customs CollegeApril 19 (Sunday)Auxiliary Medical Service HeadquartersActivities Organised in 18 Districts for the National Security Education Day (Please refer to the Chinese version)Members of the public are welcome to visit the National Security Education Day's dedicated website and the Activity overview (Chinese Only) to view the full list of events.

The existing Constitution of the People's Republic of China (The Constitution) was adopted at the Fifth Session of the Fifth National People's Congress on 4 December 1982. The Constitution is the fundamental and supreme law of the state. As an important symbol and sign of the nation, it has the highest legal status, legal authority, as well as legal effect.The Constitution is the "root" and "origin" of the Hong Kong Special Administrative Region (HKSAR). Article 31 of the Constitution stipulates that "The state may establish special administrative regions when necessary". Article 62 of the Constitution also stipulates that the National People's Congress shall exercise the power to decide on the establishment of special administrative regions and the systems to be instituted there. It is based on the stipulations from the Constitution that the HKSAR is established. The Constitution gives the legislative backing and source of power for the Basic Law, and provides a solid legal basis and constitutional framework to the basic policies of "one country, two systems", "Hong Kong people administering Hong Kong" and a high degree of autonomy.With the aim of enhancing public awareness of the Constitution, promoting its spirit, strengthening its implementation and advancing China’s overall law-based governance, the Standing Committee of the Twelfth National People’s Congress decided in November 2014 to designate 4 December as the “Constitution Day” and that the nation will conduct promotion and education activities of the Constitution through multiple channels.2025 Constitution Day SeminarTo enable various sectors of the community to better grasp the constitutional basis of our country and the HKSAR, the HKSAR Government and the Liaison Office of the Central People’s Government in the HKSAR co-organised the Constitution Day Seminar (Seminar), with the Endeavour Education Centre being the supporting organisation.The Preamble of the Constitution dearly stipulates that “realising the great rejuvenation of the Chinese nation” is a fundamental task for our country. Fully implementing the Constitution is the primary task and foundational work for comprehensively advancing the law-based governance of our country and building a socialist state under the rule of law, and has laid a solid foundation for achieving socialist modernisation and realising the great rejuvenation of the Chinese nation. This year’s Seminar was conducted on the theme of “The Constitution and the Great Rejuvenation of the Chinese Nation” to explore in depth the Constitution’s important role in the process of the great rejuvenation of the Chinese nation and Hong Kong’s unique roles under “one country, two systems”.Comprising a keynote speech and a panel discussion, the Seminar will be livestreamed online for real-time viewing by members of the public. Details are as follows:Date:4 December 2025 (Thursday)Time:11:00 a.m. to 12:30 p.m.Theme:The Constitution and the Great Rejuvenation of the Chinese Nation>>Click here to revisit the Seminar (Chinese only)CMAB's Thematic WebpageFor more information of the Constitution Day and details of the past Seminars, please refer to CMAB's dedicated webpage.National Education One-Stop PortalMoreover, details of Constitution Day-related activities and other national education events are on the Event Planning Calendar of the National Education One-Stop Portal.