This paper provides an understanding how Hamlet’s procrastination is contrived from his mother’s desire with a psychoanalytic reading of the unconscious of the central character of Shakespeare’s Hamlet. According to Freud, Hamlet delays to take the revenge as Claudius did the same thing what Hamlet in his unconscious wanted to do. It means the oedipal conflict operates at the bottom of Shakespeare’s Hamlet. On the other hand, Lacan does not identify Hamlet’s delay with Claudius’s crime; rather he reads the subversion of Hamlet’s subjectivity in the play’s dialectic of mother’s desire. This paper analyses Lacan’s interpretation of Hamlet’s desire and explores that Hamlet’s hesitation in avenging his father’s death by murdering his uncle is not because of his suffering from Oedipus complex rather because of his narcissistic attachment with the desire of his mother.