In 2021 the Hong Kong Education Bureau announced that the Liberal Studies subject in the senior secondary curriculum — a compulsory, academically demanding, and politically debated subject since the 2012 launch of the HKDSE — would be replaced by a new subject called Citizenship and Social Development (CSD). The first cohort to sit the new subject graduated in 2024. For current secondary-four, five, and six students, for parents planning their children’s educational pathway, and for international observers trying to understand Hong Kong’s evolving curriculum, the change raises a cluster of practical questions: What actually changed? What is still recognisable from the old Liberal Studies? How should students prepare for the new exam? Does CSD count for university admission the way Liberal Studies did? Is it harder or easier? And how does it fit into the broader DSE basket of subjects?
This guide answers those questions in detail. It is written for English-medium readers — Hong Kong international-school parents considering the DSE, returnee students, overseas universities trying to understand the transcript, and bilingual local students looking for an English reference to supplement Chinese-medium materials. It is not a political commentary. It is a practical explanation of the curriculum, the assessment, the content areas, the study strategy, and the administrative implications of the transition.
Liberal Studies was introduced alongside the New Senior Secondary curriculum in 2009 (first examined under HKDSE in 2012). Its original goals were broad: to cultivate critical thinking, enable students to connect academic knowledge to real-world issues, develop independent learning skills, and provide a shared core experience for all senior secondary students in Hong Kong. It was compulsory, meaning every student sat Liberal Studies regardless of their science, humanities, or business orientation. Its six modules covered Personal Development and Interpersonal Relationships, Hong Kong Today, Modern China, Globalization, Public Health, and Energy, Technology, and the Environment, with an Independent Enquiry Study (IES) school-based assessment component.
The subject was influential and often popular with students, but it drew sustained criticism from multiple directions. Teachers found the scope unmanageable and the grading inconsistent. Parents complained about the workload. Universities were mixed: some valued the critical-thinking component, others doubted whether the Level 2 “pass” threshold reflected meaningful competence. Politicians and government officials, particularly after 2019, argued that some teaching materials were one-sided and that the subject had failed in its mission of developing balanced civic understanding.
In early 2021 the government announced a replacement. The new subject, Citizenship and Social Development, was to be:
The first examination was sat in 2024. Teachers, students, and universities have spent the subsequent cycles adjusting to the new format.
| Aspect | Liberal Studies | Citizenship and Social Development |
|---|---|---|
| Status | Compulsory | Compulsory |
| Teaching hours | ~250 | ~130 |
| Grading | Level 1–5** | Attained / Not Attained |
| School-based assessment (IES) | Yes (up to 20% of grade) | No |
| Number of modules | 6 | 3 themes |
| Mainland study tour | Not required | Required (non-assessed) |
| Paper format | Two papers, data-response + extended essay | Two papers, shorter essays and data-response |
| Typical reported grade distribution | Full bell curve 1 to 5** | Binary Attained / Not Attained |
This theme examines how Hong Kong functions as a Special Administrative Region, the constitutional relationship between the HKSAR and the central government, the Basic Law, the rule of law, social development issues, and the economic strengths and challenges Hong Kong faces.
Key topics include:
Students should be able to analyse a housing policy proposal, interpret an economic data set on unemployment or median income, evaluate a legal case’s implications for the rule of law, and explain how a particular government initiative fits into the “One Country, Two Systems” framework.
This theme covers the development of the People’s Republic of China from 1978 to the present, the economic and social transformation that followed Deng Xiaoping’s reforms, China’s participation in the world economy, governance structures, and the national development strategy.
Key topics include:
This theme is where the curriculum differs most substantially from its Liberal Studies predecessor. The “Modern China” module of Liberal Studies was more comparative and more open-ended; CSD Theme 2 is more focused on recognised developmental achievements and national strategy.
This theme examines globalisation, global issues that transcend borders, international cooperation, and the role of international organisations.
Key topics include:
Students need to be able to connect a local issue (say, air quality in Hong Kong) to global processes (transboundary pollution, international agreements) and to understand how international cooperation mechanisms function.
A distinguishing feature of CSD is the compulsory mainland study tour, typically a 2–5 day programme organised by the school. It is not assessed in the public examination but is a curriculum requirement. Schools choose destinations relevant to the curriculum — historical sites, technology parks, cultural institutions, rural revitalisation projects, environmental initiatives — and students prepare before travelling and reflect afterwards.
Common destinations include:
For students who cannot travel due to medical or serious personal reasons, schools arrange alternative learning experiences to meet the curriculum requirement.
The CSD public examination has two papers:
Paper 1 — Data-Response Questions
Paper 2 — Extended Response Questions
Both papers cover material from all three themes. The total examination time is considerably shorter than Liberal Studies’ two papers (approximately 5 hours combined), reflecting the lighter curriculum.
The grade is reported as Attained or Not Attained. There is no distinction between a strong pass and a borderline pass on the transcript, although internally the Hong Kong Examinations and Assessment Authority (HKEAA) uses mark thresholds to determine the outcome.
Because CSD is Attained / Not Attained only, it does not count towards the academic score used for university admission in the same way Liberal Studies did when it was graded on the 1–5** scale.
The practical implication: CSD is a gatekeeping requirement, not a differentiator. Students cannot boost their admission profile with a high CSD grade the way they once could with a Level 5* in Liberal Studies. They can, however, fail the DSE entirely if they do not attain CSD.
CSD has fewer teaching hours than Liberal Studies, but the content is still substantive. Starting early in S5, rather than cramming in the final three months of S6, is important. Aim for steady weekly reading and discussion rather than a last-term rush.
The EDB has published a full curriculum and assessment guide for CSD. Read it once end-to-end early in your preparation. Knowing the official wording of learning outcomes helps you align your revision with what the exam actually asks for.
Textbook publishers have produced official CSD textbooks aligned with the EDB curriculum. Do not rely on old Liberal Studies materials alone — the content coverage and framing are different. Supplement the textbook with recent Legislative Council reports, government statistics, and reputable news sources for current affairs.
For each theme, maintain notes in three columns:
This structure mirrors how exam questions are set and forces you to practise the synthesis the examiners reward.
Spend 15 minutes daily or 90 minutes weekly reading high-quality news coverage on topics that fall within the three themes. Record the issue, the key data, the stakeholders, and the implication in one or two sentences. Over a year this produces a rich, personalised bank of examples — much more memorable than bullet points from a textbook.
Do full-length practice papers under timed conditions starting from the end of S5. Paper 1 (data-response) is a technique paper — every source must be used, and you must answer the specific command word (describe / explain / evaluate / suggest). Paper 2 (extended response) is a structure paper — introduction with thesis, body paragraphs with evidence, conclusion with implication.
Common command words and what they actually demand:
Paper 1 marks punish students who write general essays ignoring the sources. Every point must be anchored in a specific source — “Source A indicates that…”, “the data in Source B suggests…”. Quote or paraphrase precisely. Do not invent data.
Some students prepare pre-written essays for predicted topics. This is a poor strategy for CSD. The examiners reward adaptive argument to the specific question. A memorised essay rarely fits the exact prompt and often loses marks for irrelevance.
Theme 2 requires real engagement with national development achievements and policies. Students whose background in mainland Chinese context is thin should invest time here: read the major economic milestones, understand the Five-Year Plans framework, know what “high-quality development” and “common prosperity” mean, and be able to cite specific achievements (poverty alleviation numbers, science programmes, carbon targets).
Even though it is not examined, the mainland study tour gives you direct experience that can be cited as first-hand evidence in Paper 2 essays. A student who can write “during my school study tour to Shenzhen, I observed that…” is more credible than one writing generically about innovation and development.
CSD is a discussion subject. Two hours a week of structured group discussion — one student presents a topic, the others question and argue — is more valuable than silent solo revision for developing essay-quality argument.
Pitfall 1: Treating CSD as Liberal Studies Lite. Some students assume that because CSD has fewer hours and only Attained/Not Attained grading, it needs minimal effort. Students who neglected CSD have failed the public exam and lost their university place as a result.
Pitfall 2: Ignoring source-based technique in Paper 1. Writing general essays in what should be structured data-response answers loses marks fast.
Pitfall 3: Memorising without understanding. The examiners are skilled at setting questions that penalise regurgitation. If you only know the material well enough to recite, you will struggle when the question angle is unfamiliar.
Pitfall 4: Weak current affairs awareness. CSD questions often touch on recent events. A student who does not read the news is at a disadvantage.
Pitfall 5: Politicising answers. CSD is not the place for personal political manifestos. Answer the question asked, cite evidence, reason clearly.
Pitfall 6: Running out of time. Both papers are tight. Practice under timed conditions and plan your time by marks, not by feeling.
Q1. Is CSD easier than Liberal Studies was? Yes and no. The content is narrower and there is no school-based assessment, which reduces year-round workload. But the Attained threshold is genuine, and students who assume it is trivial have failed. The examination technique and source-based responses are still demanding.
Q2. Can I self-study CSD like some DSE candidates did with Liberal Studies? It is possible but harder. The compulsory mainland study tour requires school enrolment or an alternative arrangement, and the examination techniques benefit from teacher feedback. Most self-study candidates arrange tuition support.
Q3. How does CSD affect my admission score for HKU Medicine? CSD attained is a prerequisite but does not add to the points calculation. Admission scores are based on your best four or five academic electives plus Chinese and English, depending on the programme. Check each faculty’s specific formula.
Q4. Can I skip the mainland study tour? No — it is a curriculum requirement. Schools arrange alternatives only for documented medical or exceptional cases.
Q5. What happens if I get Not Attained? You have failed a compulsory component of the DSE. You can retake CSD in a later examination sitting. Your overall DSE result is affected.
Q6. Is CSD recognised by overseas universities? Yes, as part of the DSE transcript. Most overseas universities focus on your graded subjects and treat CSD as a pass-fail curriculum requirement comparable to other compulsory components.
Q7. Which textbooks should I use? Use any EDB-approved current CSD textbook. Do not use old Liberal Studies textbooks as your main resource — coverage differs.
Q8. I came from an international school and only have one year to prepare. Is that enough? It is tight but feasible. Prioritise the curriculum document, one good textbook, current affairs reading, and targeted past-paper practice. Tuition support is useful for technique.
Q9. Will the exam include questions on very recent events? Yes — expect questions to reference recent months of current affairs. Examiners do not expect exhaustive detail but do expect you to know the broad landscape.
Q10. Is there an independent enquiry study (IES) like Liberal Studies had? No. CSD has no school-based assessment component.
Q11. Can I answer in English if I sit CSD in an English-medium school? Yes. CSD is offered in both English and Chinese. Answer in your school’s medium of instruction.
Q12. How do I know what “Attained” actually requires? HKEAA publishes exemplar answers and mark schemes. Your teachers can access these and walk you through them. A disciplined, average student with consistent preparation should attain without dramatic effort; students who ignore the subject risk failing.
Q13. My parents want me to focus on sciences and think CSD is a waste of time. What should I tell them? CSD is compulsory — you cannot skip it. Treating it as a modest, steady commitment that secures “Attained” is the sensible position. It should not monopolise your study time, but it cannot be ignored.
Q14. Are there past papers available? Yes. HKEAA releases past papers after each examination cycle. Use them for timed practice and review.
Q15. How much weight should I give CSD relative to my electives? Allocate roughly 10–15% of total study time to CSD during normal weeks, scaling up modestly in the final revision period. Your graded electives deserve the majority of your effort, since they determine your admission score.
The transition from Liberal Studies to Citizenship and Social Development is one of the most significant recent changes in the HKDSE. Students who approach CSD as a serious — if streamlined — compulsory subject, who engage with the three themes, who treat the mainland study tour as a learning opportunity, and who practise examination technique, will attain without trouble. Students who dismiss the subject do so at their own risk. Universities treat CSD as a gatekeeping requirement rather than an admission differentiator, but a failure to attain can derail an otherwise strong application.
Read the curriculum document, use an approved textbook, keep up with current affairs, practise past papers, and use your school’s mainland study tour as concrete evidence in your essays. The subject is manageable, meaningful, and — with steady work — entirely passable for any student willing to put in the effort.
This guide is informational and based on publicly available curriculum and assessment documents as of its publication date. Policies, curriculum content, and assessment arrangements may be updated by the Education Bureau and HKEAA. Students and parents should consult official EDB and HKEAA materials and their schools for the most current information.