Abstract：Based on the three theoretical pillars, sandplay therapy explains the reason of its effectiveness in psychological rehabilitation, and has been widely used in educational system and psychological rehabilitation.However, many people still question its reliability.Therefore, psychologists continuously conduct empirical studies to confirm the reliability of sandplay therapy and develop more objective assessment methods for sandplay therapy.Recently more and more studies at home apply the sandplay therapy to self-regulation and team building for normal population, but few focus on its reliability.Studies abroad have shown a tendency to test its reliability and validity, and to combine the practices of therapists with computer technology.This may avoid extremely subjective or mechanical assessment and treatment, so that sandplay therapy could be acknowledged by more professionals.

Keyword：sandplay therapy;reliability;theoretical pillars;