On this study, the survey was conducted for the married female immigrants at work living in the district of Pusan, Changwon and Gimhae in order to analyze the level of the key competencies based on the differences of their ages, their final educational background, the period of their staying in Korea, their Korean language competence, jobs and the employment status in their native countries. As the result of the analysis, firstly, depending on their Korean language competence and jobs, there were meaningful differences among the groups in the aspects of the nine key competencies including communication, numeracy, problem solving, self-management and development, resource use, human relationship, information, technology, and organization skills, with the statistical significance level of .05. Secondly, depending on their final educational background, there were meaningful differences among the groups in the other aspects of eight key competencies except problem solving, with the statistical significance level of .05. Thirdly, depending on the employment status in their native countries, there were meaningful differences among the groups in the aspects of the five competencies including communication, numeracy, problem solving, resource use and organizational skills with the statistical significance level of 0.05. Fourthly, depending on the period of staying in Korea, there is difference only in the aspect of communication. Fifthly, depending on their ages, there were no meaningful differences among the groups.