The purpose of this study was to identify the effects of the Korean Function-Focused Care Program (K-FFCP) for residents of long-term care facilities (LTCRs) on long-term care workers' (LTCWs) knowledge, self-efficacy, and outcome expectations about function-focused care, as well as on their job satisfaction. The study adopted a quasi-experimental repeated-measures design. Participants included 50 LTCWs from two long-term care facilities (24 in the experimental group and 26 in the control group). Multivariate analysis of covariance showed that the effects of K-FFCP were significant on knowledge, efficacy, outcome expectation, and job satisfaction. Outcomes that could not be measured using scales were assessed through a focus group interview. The results suggest that LTCWs would benefit from a long-term educational program on function-focused care.