Job satisfaction is one of the main influential factors for the effectiveness of human resource development. Job satisfaction is a global concept that is comprised of, or indicated by, various facets. Thus, job satisfaction has been an individual matter and the result of various specific attitudes possessed by an employee. Nowadays there are investigations done on many impacts of human resource management practices that contain job satisfaction, organizational justice, organizational culture, and knowledge management and employee engagement in management science. In this study, we try to study more theoretical framework of job satisfaction in political administration position and public administration position in Mongolia. The aim of this study is to investigate the impacts of organizational justice, organizational culture, and knowledge management and employee engagement on job satisfaction among public officers. This research topic has been studied and is well-known in worldwide. In Mongolia, context the topic of study has been developed at low level. Data collected and analyzed from descriptive research can help public sector employees understand factors of job satisfaction. Therefore, the research methodology organized and used some information from statistical calculations in Mongolia. Data were collected from 224 participants who work in political administration officers and 228 participants who work in public administration officers. The participants were from Mongolian cities such as Ulaanbaatar. The results showed that effects of all factors had a positive relationship on job satisfaction. It means that public servants can take care of organizational justice, organizational culture, and knowledge management and employee engagement in order to remain and make their employees happy, as the more satisfied employees are; the more productive they are than those who are less satisfied. Data were analyzed using the Statistical Package for the Social Sciences (SPSS) and SmartPLS-3.0 programs.