Factors related to falls were examined in frail/prefrail community-dwelling elderly.[Participants and Methods] The subjects were 40 individuals judged to be frail or prefrail among 56 communitydwelling elderly. The subjects were interviewed regarding their history of falls over the past year, falls self-efficacy, and their living space. Grip strength and walking speed measurement, and the five times sit-to-stand test, walking speed, Timed Up and Go test, the functional reach test, and the longest possible step test were conducted for functional movement assessment. Errors in self-perceived physical ability were also measured. [Results] Errors in the self-perceived physical ability of TUG and the longest possible step test were identified as being larger in the group with multiple falls than in the group with no falls. [Conclusion] The results suggest that frail/prefrail elderly with a history of falls have errors in self-perceived physical function rather than a decline in physical function. Therefore, errors in self-perceived physical function are also findings that could be factors of falls in addition to the traditional relevant factors.