The sexual prejudice faced by sexual minorities or lesbian, gay, bisexual, and questioning/queer (LGBQ) students has been studied extensively around the world in the last two decades; however, it has only recently received attention from Hong Kong Chinese society, specifically in relation to this subtle form of prejudice. In the last decade, there has been an increase in the amount of literature examining the experiences of individuals encountering sexual orientation microaggressions, which are defined as discrimination or sexual prejudices manifested in subtle forms, particularly when directed toward socially marginalized groups, such as sexual minority students. The current study used a qualitative descriptive approach and semi-structured interviews to explore the themes of sexual orientation microaggressions experienced by Chinese sexual minority students. Several contextual themes to categorize microaggressions emerged: (1) the approval of heteronormative culture; (2) the use of heterosexist languages; (3) the assumption of sexual abnormality; and (4) the allowing of institutionally endorsed microaggressions. The results suggest that sexual minority students in Hong Kong experience diverse forms of microaggression in schools. The implications for the need to support LGBQ students are discussed, especially in addressing sexuality education in schools and the training of school professionals. Copyright © 2022 by the authors.