This study mainly aimed to identify and get clear idea about the use of knowledge management in the human resources departments and supervision offices at the Ministry of Education in the Sultanate of Oman and the effect of some of the changing aspects on it. It aimed as well to identify the main obstacles and difficulties in applying the knowledge management in those districts and the effect of the changing aspects on them. A questionnaire was designed in order to achieve the main objectives of this study and it consistes of two main domain. The first part was about the knowledge management processes and it covered four main areas: the knowledge diagnosis process, the knowledge storing process, the knowledge dividing and exchanging process, the knowledge practicing process. While the second part was about the difficulties and obstacles in applying the knowledge management. The study was applied on a group of about ( 282 ) people of the supervision districts' managers, vice managers, heads of departments, supervisors and administers. The descriptive analysis was the main methodology used in analyzing the data of the study and they were processed using the averages and st. deviations. In investigating the differences in the results due to the changing aspects, such as the positions, study qualifications and residences, the (ANOVA) methodology was used. The main results of the study were: based on the case study sample, the existence of the knowledge management process in the ministry's human resources and supervision districts is in the average level i in the sides of knowledge diagnosis, storing, exchanging and practicing . Based on the individuals of the study, the difficulties of applying the knowledge management is within the high and the average levels. There are noticeable differences in the means (a = 0,05) of the individuals' responses related to the positions of the person for the particular positions (manager, vice managers, head of department) when it comes to knowledge diagnosing, exchanging and practicing sides. There are major differences in the means (a = 0,05) in the individuals' responses related to the study qualifications for the(BH, diploma), in the knowledge diagnoses and the knowledge applying difficulties sides. There were some differences in the means (a = 0,05) of the results regarding to the different residence of the individuals for AlBatina and AlSharqiya South, in the knowledge applying difficulties side.