Abstract
The paper presents the second theory of anxiety by Sigmund Freud, as well as anxiety in the developmental perspective, as viewed by Freud, Melanie Klein and Margaret Mahler. According to Freud, in the development of any child there is a characteristic sequence of dangerous situations evolving the child's anxiety and remaining in his/her unconsciousness through the life. The sequence includes: loss of the object, loss of the object's love, castration anxiety in the Oedipal, stage, and the fear of superego. Various forms of anxiety associated with the Oedipal, stage and with superego formation, as described in detail by Freud, are presented in the paper from his viewpoint. On the other hand, the early childhood development with the associated anxieties was discussed from Melanie Klein's point of view (the first year of life) and from that of Margaret Mahler (the first few years).