Abstract：Since sandplay therapy was originated by Dora M. Kalff, with its development and innovation, sandplay therapy has been meeting the doubt whether it is orthodox or not due to the different theoretical background and ideas of therapists. The “mother-child unity” , the “free and protected space”, the “silent witnessing” attitude, the individualization process, the equipment and the implementing can be regarded as the orthodox marks of Kalffian sandplay therapy，in the practice of sandplay therapy. The best application of sandplay therapy is that the therapists should combine Kalffian basic viewpoints with their personality, according to the standard for which the therapy meets the clinical needs and helps to heal psyche. Only in this way can we better promote the development of sandplay therapy.
