Objectives: There are inconsistent results about relationships among the subjective memory complaints(SMC), objective cognitive functions and clinical implication that SMC was a significant part of Mild Cognitive Impairment(MCI) criteria associated with early stage of Alzheimer`s disease. The Authors tried to investigate change of cognitive functions in subjective memory complainers according to time interval to identify whether SMC is related with cognitive decline or not. Methods: At baseline and one-year follow-up, total 143 participants living in the asylum for the aged had a clinical examination and neuropsychological test(frontal lobe function test, CERAD-K: the Korean version of the Consortium to Establish a Registry for Alzheimer`s Disease and Digit Span Test). All of them were evaluated by four specific questions about everyday memory function. We divided the elderly into two groups(SMC+ group: 87, SMC- group: 56) and evaluated the differences in change of cognitive functions. Results: SMC+ group had lower scores on the word list recognition test than SMC- group at oneyear follow-up(MANCOVA: age and education variables were controlled). There was a statistically significant cognitive decline on the digit span-forward test at follow-up in SMC+ group. But, there was no significant difference between two groups in change of cognitive functions according to time interval. Conclusion: These results suggested that there was no difference in cognitive decline between two groups according to time interval. It is questionable and needs more investigations that SMC is a significant part of MCI criteria.