This paper is a presentation of the concept “transference” in psycho-analysis. In Freud's thought, transference movements are new editions, copies of tendencies or phantasies that are the repetition of infantile prototypes, relived with a lively feeling of actuality. The text shows Freud's reflection on transference, and the importance of the countertransference which has been much developed by the post-freudians authors. Then, the principal forms of transference are presented, for example passionate transference, or transference by reversal. The psychoanalytic reflection about transference leads to study the analyst's neutrality, and to pay attention to the setting of the sessions. André Green emphasizes that the transference that is addressed to the analyst is at the same time a transference on the setting and on to speech. In the complexity of the “analytic situation” (Donnet), speech is transformed under the effect of the transference address (Rolland).