Abstract: In Neuromancer, a cyberpunk science fiction, the cyberspace is not only the central space of the narrative, but also the representative carrier of Case's false and true memory, the construction of memory, and the artificial memory of artificial intelligence. Although it challenges the reader's cognition, the fictional plot presents memory in the cyberspace and focuses on the realistic issues, such as identity anxiety, self-cognition, emotion, and humanity. Therefore, this article argues that space and memory are essential to tracing one's roots and seeking one's homecoming, so Case's space trip is actually a trip of his identity pursuit. As a special ethical space, the cyberspace provides a place for Case to establish an ethical relationship with others and to pursue his identity. The fragmented memory in the oscillation of false and true memory indicates the uncertainty of identity and the difficulty in identity pursuit. In the end, Case re-enters the cyberspace to fight against the artificial intelligence, embarking once again on a quest of tracing his roots, a quest that entails not only reconstructing his identity, but also finding a home for mankind and contemplating humanity.

Key words: Neuromancer, cyberspace, memory, identity, ethics