This study explores Chinese secondary students’ intentions for future political participation drawing on samples of students from Mainland China and Hong Kong. Political participation examined in this study includes both conventional participation (legal protest, electoral participation and informal participation) and unconventional participation (illegal protest). Previous studies of adoles-cents’ political participation intentions have mainly been concerned with democratic regimes while this study focuses on authoritarian and hybrid regimes, such as those in Mainland China and Hong Kong. Adopting a comparative and quantitative methodology, this study utilized secondary data analysis with large samples. This study found that students from both societies showed a weak endorsement of illegal protest but a strong endorsement of all three types of conventional participation. Mainland Chinese students demonstrated a stronger endorsement of conventional participation than their Hong Kong counterparts. To understand inner-group difference, students were clustered into four groups (Alienated-Radical Participators, Supportive-Active Participators, Loyal-Minimal Participators and Critical-Active Participators) based on their political attitudes (political trust and political efficacy) and intentions for future political participation. Results suggest that Hong Kong had more Alienated-Radical Participators while Mainland China had more Supportive-Active Participators. In general, Mainland Chinese students were more regime-supporting and Hong Kong students were more regime-challenging. Copyright © 2023 Intellect Ltd Article.