The aim of this thesis is to describe how the problem of prostitution is framed by Amnesty International. The gap in existing lines of scholarship on framing and prostitution policies, and framing and transnational advocacy networks, is the lack of descriptive research on international framing of prostitution by Amnesty International. The theoretical approach of this thesis is social constructivism, framing theory and previous studies on prostitution paradigms. By using framing theory together with previous studies on prostitution paradigms this thesis aim to specifically answer how the problem of prostitution is framed by AI; what they recognize as the problem, cause and solution to the problem. The methods to conduct this study is qualitative single case study, the data consists of official policy documents on sex work, further, the methods of analysis is qualitative textual analysis of the content of the data. The results of this study is that the problem of prostitution is given a human rights frame by Amnesty International that points out the legislative, social, and individual injustices caused by criminalization and that sex work is suggested to be decriminalized because sex workers rights are human rights that is constantly being violated at the hands of state and non-state actors.