) to develop the guideline in developing core competency for their operations. Data was collected from academic supporting staff in the Humanities and Social Sciences sector of Khon Kean University totally 8,809 persons by cluster. The samples were academic supporting staff from 9 faculties totally 39 persons and a head of Academic Services staff totally 9 persons. Data collection tool was a questionnaire has the reliability at 0.952 and a semi-structured interview Analysis of data from a query using the program. Data analysis methodology need to find the frequency, percentage, average, standard deviation, and content analysis from the interviewees.