The purpose of this study is to examine social worker‘s attitude and influencing factors towards Evidence Based Practice(EBP) in Gwangju and Junnam area in Korea. The data was collected from 332 social workers from Gwangju and Junnam area. Structured questionnaires were used to collect the data. The Evidence-Based Practice Attitude Scale(Arons, 2004), self efficacy scale, EBP basic skill(Kang, 2001), organizational culture survey instrument(Oh, 2003) were used for this study. The data was analyzed using SPSS 12.0. The results of this study was summarized as follows; First, in relation to attitudes to EBP, the result showed a significant difference (p<.01) between types of organizations but did not show a significant difference between general characteristics. Second, in relation to self efficacy, the result highlighted that there is a significant differences in general characteristics which include age(p<.05), level of education (p<.05, status(p<.01) and years of work experience(p<.01). It also showed a significant differences in organizational characteristics which include types of organization(p<.05) and research facilities(p<.01). Third, in relation to basic skills of EBP, the result showed a significant difference between the level of education(p<.001), types of organization(p<.05) and research facilities of the organization(p<.001). Finally, in relation to the organizational culture, the results showed a significant difference between sex(p<.05), status, types of organization and types of service program. In relation to social workers\' attitudes towards EBP the results showed that there is a positive relationship between self efficacy and basic skills on EBP. The research also highlighted that there is a significant difference in organizational culture which includes relationship orientated culture, innovation orientated culture, task orientated culture and hierarchial orientated culture but there is no significant difference with other variables. This means that in order to achieve a positive attitude towards EBP there needs to be an increase in self efficacy, EBP skills training and changes in organizational culture. In relation to the corelation between self efficacy on EBP and other variables, the results showed that there is a positive relationship between basic skills on EBP, relationship orientated culture, innovation orientated culture, task orientated culture and hierarchial orientated culture. The outcome of the research indicated that the higher the position of social workers, self efficacy and basic skills in EBP is shown to be high. Based on the findings the implications for education program for social workers and organizational changes relating to EBP were discussed.