This paper, from the perspective of the theory of transgression, analyzes the behaviors of three female characters, namely Emmaline, Nola, and Maggie, in Louise Erdrich’s novel LaRose. It is found that the behaviors of these three women demonstrate multiple dimensions of the theory of transgression, including the confrontation with social norms and the reinventing of personal identities. At the same time, these behaviors also showcase the awakening and resistance of female self-awareness and the way of coping with individual and collective traumas by transcending boundaries.