Objective:To explore the particular inner world of the patients with sandplay therapy,and to summarize the diagnostic characteristics in initial sandtray of the positive psychological symptoms.Methods:The research selected 73 obsession symptoms as the experimental group and 36 healthy students as the control group by the SCL-90.Collect the initial sandplay encoding of information by coding table.Results:① For the use of toys,the experimental group was significantly higher in armaments,and significantly lower in people,buildings,vehicle,plants,and daily necessities.②For the descriptive characteristics,the experimental group was significantly different from the control group in the attitude of the sand,the disclosure of the blue under the sand,the use of the bridge,whether satisfied with the work,if the self on the sand,the scene type.③For the theme of sandplay,the experimental group was significantly higher in confusion,empty,restriction,neglect,injury,threat,hinder,and lower in integration,travel,depth,cultivation,and energy.Conclusion:The results shows that the positive psychological symptoms have significantly characteristics in sandplay.Initial sandplay is valuable to be a clinical psychological assessment.