The aim of this study was to investigate the differences in the characteristics of the responses to Face Stimulus Assessment(FSA) drawings among patients with schizophrenia, older people with dementia, and normal older people. For this purpose, the FSA test was conducted with a total of 150 participants from May to October 2017. The participants consisted of 50 schizophrenia patients and 50 dementia patients in a Psychiatric Hospital and 50 normal older people from Senior Welfare Center. To analyze the data, cross-tabulation analysis and discriminant analysis were carried out. The results of this study were as follows: With respect to FSA Drawings 1 and 2, there were statistically significant differences among the three groups in all 12 variables: “prominence of color,” “color fit,” “implied energy,” “logic,” “realism,” “developmental level,” “details of objects & environment,” “line quality,” “perseveration,” “drawing type,” “emotional content,” and “number of used colors.” In the case of FSA Drawing 1, the overall discriminant power of these variables to discriminate groups was 88.6%, with 90.0% for schizophrenia patients, 84.0% for dementia patients, and 90.0% for normal older people, respectively. In the case of FSA Drawing 2, the overall discriminant power of these variables to discriminate groups was 85.3%, with 72% for schizophrenia patients and 92.0% for dementia patients and normal older people, respectively. Each group was well characterized by the FSA.