The above answer is one-sided, let me supplement it. Currently, there are two banner figures in the psychological counseling and treatment technology of sandplay game in China, one is Professor Zhang Risheng of Beijing Normal University, and the other Professor Shen Heyong from South China Normal University. Professor Zhang Rishen’s Box Garden Therapy was introduced from Japan. Professor Shen Heyong’s method was improved based on Chinese culture based on the sandtray therapy of the International Psychoanalytic Association and Sandplay Therapy Association. Currently, there are two in China Sandtray therapists are international sandtray therapists, namely Shen Heyong and Gao Lan. Only their sandtray games have national patents and are certified by the International Sandtray Game Therapy Association. The most authoritative sandtray game therapist certification is also from Professor Shen Heyong. Only the certification issued by them is internationally recognized. If you want to become an international sand tray therapist, you must pass their certification