This study conducts a systematic literature review to systematically build a comprehensive understanding on the social workers'turnover in Korea.. For the selection of literature, this study searched related literature published between November 1, 1991 and August 31, 2019 through major social science databases and finally selected 53 published empirical papers based on the inclusion and exclusion criteria. Based on the 53 papers, first, this study identified authors and the publication year, time dimension (cross-sectional vs. panel) of data, types of data(primary data vs. secondary data), survey period, target population, survey area, sampling method, sample size, dependent variable, and analysis methods. Second, this study summarized methods and tools of turnover behavior measurement from the 53 papers. Third, this paper identified key factors which influence social workers'turnover behavior based on variables' statistical significance reported in 28 papers which included control variables in their analysis model. Main results of this study are as follow. First, 46 studies(87%) were published after the 2000s; 52 studies(98%) utilized cross-sectional data; 45 studies(85%) used primary data; 27 studies(51%) used data collected after the 2010s; 29 studies(55%) focused on social workers working in private social welfare organizations; 33 studies(62%) limited their survey on specific areas; 38 studies(72%) used non-probability sampling method; in 32 studies(60%) effective sample size was between 200 social workers and 400 social workers; 48 studies(91%) measured level of turnover intention; and 34 studies(64%) used multiple regression method as a analysis. Secondly, in measurement of turnover behavior measurement, 45 studies(85%) used multidimensional scales to measure level of turnover intention; 7 studies(13%) used a single question to measure level of turnover intention; and only 1 study(2%) used a single question to measure actual turnover behavior. Third, relatively consistent factors affecting social workers'turnover behavior were as follows: in personal factor, age(-), depression level(+), overall burnout(+), and emotional exhaustion(+) and depersonalization(+) of burnout were statistically significant; in organizational and job-related factor, type of organization(+ when working in a private social welfare organization), employment status(+ with temporary employment), pay level(-), experience of client violence(+), positive perception on organizational characteristics(-), job stress(+), job satisfaction(-) were statistically significant. Finally, in these papers, external environmental factor were very limitedly included in their analysis models to examine social workers'turnover behavior in Korea. As the first systematic literature review paper, this study contributes to broadening and deepening understanding on social workers'turnover studies in Korea.