The combination of Sandplay therapy and modern technology represents a development trend of Sandplay, which enriches application forms and scenarios. For example, virtual Sandplay can break through the space and time limit of application to carry out remote consultation. Therefore, this paper attempts to summarize the current situation of innovative application of Sandplay therapy combined technology, and briefly describes a new application form -- 3D virtual Sandplay, explaining its constituent elements, operation process and theoretical basis, etc., in order to provide reference for related research and application.