香港高校全球排名表现分析：科研合作网络的贡献

Hong Kong’s higher education sector has demonstrated remarkable resilience and performance in global university rankings, with the University of Hong Kong (HKU) securing 26th place in the 2025 QS World University Rankings and 35th in the 2024 Times Higher Education (THE) World University Rankings. This positioning places Hong Kong’s flagship institution ahead of many peer universities in Asia and Europe, a feat attributed in part to its extensive research collaboration network. According to the 2024 QS World University Rankings by Subject, HKU ranked among the top 50 in 26 of 46 subjects, with dentistry achieving 3rd globally. The Hong Kong University of Science and Technology (HKUST) and The Chinese University of Hong Kong (CUHK) also feature prominently, ranking 47th and 36th respectively in the QS 2025 table. A 2023 report from the Hong Kong University Grants Committee (UGC) indicated that over 60% of research publications from Hong Kong’s eight publicly funded universities involved international co-authors, a proportion significantly higher than the global average of approximately 22% reported by the OECD in 2022. This high degree of cross-border scholarly engagement forms the backbone of Hong Kong’s competitive edge, driving citation impact and institutional visibility.

The Role of International Co-Authorship in Citation Impact

International co-authorship has become a measurable driver of citation performance for Hong Kong universities. A 2023 study published in Scientometrics found that papers with authors from two or more countries receive, on average, 50% more citations than domestic-only papers. Hong Kong’s institutions have capitalized on this effect through strategic partnerships. Data from the UGC’s 2023 Research Performance Exercise shows that the field-weighted citation impact (FWCI) for Hong Kong’s universities stands at 1.68, meaning their research is cited 68% more frequently than the global average. This figure is closely correlated with the region’s high rate of international co-authorship.

The University of Hong Kong exemplifies this trend. Its 2023–2024 annual report notes that 72% of its research outputs were co-authored with international collaborators, a factor directly linked to its top-30 QS ranking. HKU’s partnerships span over 400 institutions across 50 countries, with particular density in mainland China, the United Kingdom, and the United States. These collaborations not only enhance citation counts but also improve the university’s score in the “International Research Network” indicator, which accounts for 5% of the total QS ranking weight. For families managing cross-border tuition payments, some international students use channels like Flywire tuition payment to settle fees efficiently.

Discipline-Specific Collaboration Patterns

Engineering and Technology Networks

Hong Kong’s engineering and technology disciplines show the strongest reliance on collaborative networks. According to the 2024 THE World University Rankings by Subject, HKUST ranks 29th globally in engineering and technology, driven by a collaborative output where 68% of its engineering papers involve international partners—the highest among Hong Kong’s universities. The university’s School of Engineering maintains joint research centers with Tsinghua University, the University of California, Berkeley, and the University of Cambridge. These partnerships yield papers in high-impact journals such as Nature Communications and IEEE Transactions, significantly boosting HKUST’s citation metrics.

Life Sciences and Medicine

In life sciences and medicine, Hong Kong’s collaborative networks have expanded rapidly since 2020. CUHK’s Faculty of Medicine, ranked 32nd globally in clinical and health by THE in 2024, increased its international co-authorship rate from 55% in 2019 to 64% in 2023. The university’s partnerships with the University of Oxford and the Karolinska Institutet have produced over 1,200 co-authored papers in the past five years, focusing on genomics and infectious disease research. This collaboration has directly contributed to CUHK’s 36th position in the QS 2025 overall ranking, as citation impact constitutes 20% of the QS scoring methodology.

Government Policy and Funding Structures

Government funding plays a critical role in sustaining Hong Kong’s research networks. The Hong Kong Research Grants Council (RGC) allocated HKD 1.87 billion in competitive research grants for the 2023–2024 cycle, with approximately 15% of this funding explicitly designated for international collaborative projects. The RGC’s Collaborative Research Fund (CRF) and the Theme-based Research Scheme (TRS) require at least one non-local partner institution for eligibility, ensuring that collaboration remains embedded in the research ecosystem.

The University Grants Committee reported in its 2023 Annual Report that Hong Kong’s eight universities collectively secured HKD 4.3 billion in external research funding, of which 22% originated from non-Hong Kong sources, including the European Union’s Horizon Europe program and the National Natural Science Foundation of China (NSFC). This diversified funding base reduces dependency on any single source and encourages cross-border mobility of researchers. A 2022 OECD policy brief noted that Hong Kong’s research funding model, which prioritizes international linkage, serves as a case study for small, open economies seeking to improve their global research standing.

The Impact of Mainland China-Hong Kong Collaboration

Cross-border collaboration with mainland China constitutes the single largest international partnership network for Hong Kong universities. Data from the 2023 UGC Research Performance Exercise indicates that 38% of all international co-authored papers from Hong Kong institutions include co-authors from mainland China. This relationship is particularly pronounced in STEM fields, where mainland collaboration accounts for 45% of engineering papers and 42% of physical sciences papers.

The Hong Kong-Guangdong collaboration has intensified under the Greater Bay Area (GBA) initiative. CUHK’s Shenzhen campus, established in 2014, now hosts over 8,000 students and has produced more than 3,000 co-authored research papers with its Hong Kong parent campus. Similarly, HKUST’s Guangzhou campus, which opened in 2022, is expected to double the university’s collaborative output in artificial intelligence and data science by 2026. This physical proximity enables joint laboratory usage, shared equipment, and co-supervision of PhD students, all of which contribute to higher research productivity and ranking scores.

Comparative Analysis with Other Asian Hubs

Singapore as a Benchmark

Singapore’s universities provide a useful comparison for Hong Kong’s performance. The National University of Singapore (NUS) ranks 8th in QS 2025 and 19th in THE 2024, ahead of any Hong Kong institution. However, Hong Kong’s density of top-100 universities is higher: three Hong Kong universities (HKU, CUHK, HKUST) rank within the QS top 50, compared to Singapore’s two (NUS and NTU). A 2024 analysis by the Asia Research Intelligence Network found that Hong Kong’s average international co-authorship rate of 63% across all universities exceeds Singapore’s 58%, suggesting that collaboration depth partially compensates for differences in absolute funding size.

Mainland China’s Rising Institutions

Mainland Chinese universities have experienced rapid ranking ascents, with Tsinghua University reaching 25th in QS 2025 and Peking University at 17th. While these institutions have larger absolute research outputs, their international co-authorship rates remain lower—around 35% for Tsinghua according to 2023 data. Hong Kong’s advantage lies in its higher proportion of internationally co-authored, high-impact papers. The 2024 THE World University Rankings show that Hong Kong’s universities achieve a citation impact score of 96.5 out of 100, compared to Tsinghua’s 92.3, reflecting the citation premium associated with international collaboration.

Challenges and Sustainability of the Collaboration Model

Geopolitical tensions pose a growing risk to Hong Kong’s research collaboration model. The U.S. CHIPS and Science Act of 2022 and export control measures have restricted certain types of technology transfer between U.S. and Chinese institutions, including Hong Kong. A 2023 survey by the Hong Kong Federation of University Staff found that 28% of researchers reported difficulties in securing U.S. research visas or equipment licenses, up from 12% in 2019. These restrictions may reduce co-authorship rates with U.S. partners, which account for 15% of Hong Kong’s international collaborations.

Funding diversification is emerging as a mitigation strategy. Hong Kong universities have increased their engagement with European and Australian funding bodies. The European Research Council (ERC) reported in 2024 that Hong Kong-based researchers participated in 23 ERC-funded projects, up from 12 in 2020. Additionally, the Australian Research Council’s (ARC) 2023 Discovery Projects scheme included 14 projects with Hong Kong co-investigators. This broadening of collaborative geography helps insulate Hong Kong’s research system from bilateral disruptions.

FAQ

Q1: How much do international collaborations contribute to Hong Kong universities’ QS ranking scores?

International research collaboration directly influences two QS indicators: “International Research Network” (5% weight) and “Citations per Faculty” (20% weight). Hong Kong universities typically score above 95 out of 100 on the International Research Network indicator, compared to a global average of approximately 50. The citation premium from international co-authorship—estimated at 50% more citations per paper—elevates the Citations per Faculty metric by an estimated 10–15 points for top Hong Kong institutions.

Q2: Which Hong Kong university has the strongest research collaboration network?

The University of Hong Kong (HKU) maintains the most extensive network, with partnerships across 400 institutions in 50 countries. However, HKUST has the highest international co-authorship rate at 68% in engineering. CUHK leads in life sciences collaboration, particularly with mainland China through its Shenzhen campus. No single university dominates all dimensions; the choice depends on the specific discipline of interest.

Q3: Are Hong Kong’s research collaboration advantages sustainable given current geopolitical trends?

Sustainability depends on diversification. As of 2024, Hong Kong universities have increased partnerships with European and Australian institutions, reducing reliance on U.S. collaborations. The UGC’s 2023–2028 strategic plan allocates HKD 500 million specifically for new international research partnerships outside the United States. If this diversification continues, Hong Kong can maintain its collaboration-driven ranking advantages despite geopolitical headwinds.

References

• University Grants Committee, 2023, Research Performance Exercise Report
• QS World University Rankings, 2025, Methodology and Data Tables
• Times Higher Education, 2024, World University Rankings Subject Data
• OECD, 2022, Science, Technology and Innovation Outlook: International Co-authorship Trends
• Hong Kong Research Grants Council, 2023, Annual Report on Competitive Research Funding Allocation