In this paper, literature pertaining to the development of sandplay therapy and its relevant research between 1981 to 2007 are analyzed to identify the diversity and uniqueness of the approach as well as the research trend. Results of the literature review indicated: (1) The common research methods of these fields are qualitative research methods, case study, and experiment design. (2) research participants were mostly children and teenagers. (3) Research in Taiwan lagged behind those in other countries in terms of research periods, quantities, and diversity. (4) Research participants were mostly nonclinical case as well as loss and traumatic case. According to the findings, future research development in this field are discussed and offered.