Background: Staff members' views can have a significant impact on sexuality issues of people with intellectual disabilities. Research on the impact of sociocultural factors in this area in the Chinese context is sparse. Methods: Semi-structured interviews were conducted with seven professionals (social worker, nurse, life skills trainer and manager) to explore their experiences of and attitudes towards the sexual needs of people with intellectual disabilities by applying interpretative phenomenological analysis. Results: The study identified two major themes, each with two sub-themes: 1. Professional handling of the sexual needs of people with intellectual disabilities (sex education and intervention); 2. Barriers (incompatible approaches and parental resistance). Participants also experienced feelings of resignation facing the barriers they encountered. Collectivism and cultural view about sex are potentially the influencing factors. Conclusion: This study highlights the need to adopt an evidence-based sex education programme whose content and delivery should take account of cultural factors.