Job satisfaction is crucial for organization function, without job satisfaction employee will not put up their best and the company performance will not be efficient. There are many factors that affect employee’s job satisfaction, the purpose of this study is explore and investigate the factors that affect on job satisfaction in Foreign Affairs Department of Ha Giang Province (FADH). For conducting the search, this thesis applied empirical method and survey with 201 staff who are working in FADH and lower level. By using the principle component method for explorative factor analysis reality and validity were validated. The regressions are taken to examine the relationship among variables. The result indicates that payment, working conditions, reward policy and training and promotion have positives effect on employee’s job satisfaction. The results also indicate that welfare policy is not predicted employee’s job satisfaction, this result make sense since FADH is public sector. Implication of finding, limitation of research and suggestion for further study are also discussed in this study.