Abstract: This study deals with the transfer of sandtray play therapy to a Multi-Touch Table (MTT) and propose multi-touch table-based sandtray therapy platform. Through the proposed system, it is possible to separate the diagnosis process and the treatment process simultaneously from the sandbox play, thereby providing an environment where the treatment can be concentrated. MTT-based sandtray therapy allows a person to construct his or her own microcosm using colored MTT and miniature toy. Similarly, the scene created acts as a reflection of the person’s own life and allows him or her the opportunity to resolve conflicts, remove obstacles and gain acceptance of self. The proposed system recognizes the arrangement of the figures and diagnoses the client’s psychological state using the expert system.