In recent years, the relationship between language and identity and that between language and gender have attracted researchers in diversified fields. Considering the gradually increasing participation of females in politics, this paper researches into discursive strategies for identity construction of female politicians, with Hillary Clinton's campaign speech as an example. The results show that metadiscourse resources like self-mentions and boosters, intertextual devices like quotation and reference, and metaphors, help to construct her femaleness and her roles in society, revealing to the public her rigorous thinking and supreme self-confidence, arousing echoes in the audiences' hearts and leading to the successful construction of her multiple identities as a woman, a daughter, an American, a Democrat and a presidential candidate.