In the article, the Sandplay therapy, which is one of psychotherapeutic techniques used in analytical psychology since 1960's, has been presented. An outline of the concept, the technique development and also the theoretical background and practical course of the therapy have been described. The Sandplay therapy is a well established therapeutic technique, mostly used by Jungian analysts. It's originators - Margaret Lowenfeld and Dora Kalff - recognised a spontaneous play in a safe and protected therapeutic space as both healing and transforming for children as well as for the adult patients. The authors suggest to use the Polish translation "terapia w piaskownicy" which is not exact, but gives a better sense of the way sandtray is used in this method. The Sandplay Therapy consists of multiple sessions, in most cases during verbal analysis, during which the patient is encouraged simply to play with small figurines of different kinds in a small sandtray. An analytical interpretation of factors activated in the process of the Sandplay therapy and the ones that play a basic role in the process of healing have been considered in detail.