The purpose of this study was to analyze the effectiveness of the application of the concept of ASN Corporate University integrated with the Knowledge Management System in the Development of Human Resources (HR) Apparatus. The benefit of this research is to contribute ideas for government agencies in knowing the effectiveness of implementing the ASN Corporate University concept in the development of human resources for apparatus supported by an effective and appropriate Knowledge Management System policy. As well as providing benefits to the academic world, namely being a contribution of knowledge and insight in terms of more appropriate policy implementation strategies by leaders in Ministries, Institutions, and Local Governments regarding the effectiveness of implementing the ASN Corporate University concept integrated with the Knowledge Management System in Apparatus HR Development. The research method used is a mixed method (mixed method). Analysis of the study conducted in the Yogyakarta area as a representation of the local government that has implemented the ASN Corporate University concept well. Data was collected by means of questionnaires, observations and in-depth interviews in the period from March to May 2022.