This study is one-group pretest-posttest pre-experimental research to testify the effects of cognitive function enhancement program for elderly residents on cognitive function, physical function and emotional function. The Participants of the program are 27 elderly aged 65 or older who received the cognitive enhancement program at 4 Kyungrodang in N city from June 1 st , 2017 to December 31 th , 2017. The program provided a total of 8-10 sessions, once every two weeks. Outcomes variables included cognitive function(MMSE-DS), physical function(K-ADL, K-IADL), emotional function(SGDS-K). As the result of the study, MMSE-DS(t=-0.80 p=.434), ADL(t=1.09 p=.285), SGDS(t=0.27 p=.790)were not statistically significant, however slightly improved on average before and after the program. IADL was statistically significant improvement of physical function(t=21.05, p<.001). Therefore, the elderly cognitive function enhancement program was effective in improving the cognitive function of the elderly. And provided the resources needed to develop an intervention program for elderly and the persons with dementia. But it is suggest that the cognitive function improvement programs for the elderly should be improved and developed and perform further study with more participants for its generalization.