Objective:To examine the relationship between internalized homophobia and self-concept clarity in lesbians,and explore the mediating role of gender role conflict and the moderating role of loneliness.Methods:Totally 510 lesbians were selected and assessed with the Internalized Homophobia Scale(IHS),Gender Role Con-flict Scale-Short Form(GRCS-SF),Self-Concept Clarity Scale(SCCS),and UCLA Loneliness Scale(UCLALS).Model 4 in the PROCESS macro program was used to test the mediating role of gender roles,and Model 14 was used to test the moderating role of loneliness.Results:The IHS scores were negatively correlated with the SCCS scores(r=-0.11,P＜0.05).Gender role conflict fully mediated the relationship between lesbian internalized ho-mophobia and self-concept clarity(indirect effect=-0.09,95％CI=-0.13--0.05).Loneliness moderated the relationship between gender role conflict and self-concept clarity among lesbians(Bsimple=-0.17,-0.30,P＜0.01).Conclusion:It suggests that the internalized homophobia may be related to self-concept clarity in lesbi-ans,with gender role conflict as a mediator and loneliness as a moderator moderates between their relationships.