Even if Taiwan has legalized same-sex marriage since 2019, landmarking the first country in Asia, mainstream prejudices and discrimination against the LGBT communities can still be found in daily lives. In the past, the LGBT communities were regarded as a homogeneous group, regardless of their distinctiveness of sexual/gender nature as well as socialization processes. In this sense, this research departs from post-structural feminism, adopting qualitative research methods in order to map lesbian clients’ experiences in the process of counselling, thus exploring power and resistance within their experiences. This study firstly found that even though most lesbians assumed counselors tended to be more LGBT-friendly than the general public, they still consulted trustworthy friends, relatives, and psychiatrists for introducing counselling resources to confirm those institutions were to what extent friendly before stepping into the counselling space. Secondly, the biological sex and sexual orientation of the counselors had different meanings for lesbian clients. Thirdly, counselors’ attitudes and knowledge towards lesbians influenced their counselling relationships. In particular, there were unequal power relations between counselors and clients. For instance, counselors may demonstrate their power by estimating the authenticity of sex passion between the same-sex, pathologizing homosexuality, avoiding LGBT issues, or stereotyping clients through heterosexual sexual lenses. However, clients are not passive recipients. Instead, Lesbian clients may utilize strategies such as keeping silent, educating the counselors, or ending the counselling relationship to resist the counselors’ power. Apart from that, counselors’ engagement in gender issues of the society matter in maintaining counselling relationships; for instance, awareness of social atmosphere and major LGBT events, their social action outside counselling room, etc. In other words, counselors’ claims or signals of LGBT-support do encourage lesbians to seek for help when needed and releases their alert to anti-LGBT religious beliefs. In sum, this research contributes to demonstrating the unique picture of lesbian clients in the counseling process, providing suggestions for counseling practitioners on how to work with their lesbian clients more effectively.