According to modern unconscious theory research, consciousness arises from thedifferentiation from the unconscious, and the study of the unconscious in contemporary psychology isan important direction. Among them, Swiss psychologist Carl Gustav Jung is another culmination of thestudy of the unconscious, following Sigmund Freud’s psychoanalytic theory. He pushed the study of theunconscious from the individual level to a deeper and deeper level, with his most representative studybeing the collective unconscious. This article roughly categorizes according to the theoretical frameworkof Jungian analytical psychology, and elaborates on three aspects: personality structure, the relationshipbetween analytical psychology and philosophy, and technology and application. It attempts to provide apreliminary overview of Jungian analytical psychology theory.