With increased focus on adult day services for people with dementia in the United States and Japan, Taiwan had implemented manpower allocation standards for dementia-specific and dementia-disability mixed adult day services in 2008. The operation of these two service models, however, has not been explored yet. This study presented the current status of social model of adult day care centers in Taiwan. A total of 81 questionnaires were sent out to adult day care centers and 61 of them completed the survey. Major findings included: (1) the average number of service users was 20.48. Users who were diagnosed with dementia accounted for 27% of the participants in dementia-disability mixed adult day care centers and 65% in dementia-specific adult day care centers, (2) Compared to dementia-disability mixed day care, dementia-specific day care centers reported a higher prevalence of hiring nurses and social workers. They also expressed a greater emphasis on activities aiming to maintain cognitive functioning, including cognitive stimulation therapy, art therapy and leisure activities such as reading newspaper, bingo or Sudoku. In addition, dementia-specific day care centers also reported a higher percentage of providing services for family caregivers than did dementia-disability mixed day service. Policy and practice implications, based on research findings and the literature on the cases of United States and Japan, were provided. A specialized model for adults with dementia should be developed in the future.