|Period||OITA UNIVERSITY||OITA MEDICAL UNIVERSITY|
|May,1949||Oita University (the Faculty of Liberal Arts, the Faculty of Economics) was established.|
|March,1956||Postgraduate Scheme of Specialized Study in the Faculty of Economics was established (Abolished in May, 1977).|
|April,1965||Postgraduate Scheme of Specialized Study in the Faculty of Liberal Arts was established (Renamed in April, 1966, Abolished in March, 1992).|
|April,1966||The Faculty of Liberal Arts was renamed into the Faculty of Education.|
|April,1969||Moving and unification of the university facilities at Dannoharu Campus were completed.|
|May,1972||The Faculty of Engineering was established.|
|April,1974||Health Science Center was established.|
|October,1976||Oita Medical University was established.|
|May,1977||Graduate School of Economics (Master Course) was established.|
|April,1979||Graduate School of Engineering (Master Course) was established
(Reorganized into Master Course as Pre-Doctoral Courses in April, 1995).
Research and Guidance Center for Classroom Teaching was established in the Faculty of Education.
|April,1981||University Hospital was established.|
|April,1984||Graduate School of Medicine (Doctor Course) was established.|
|April,1987||Research Laboratory Center was established.|
|June,1989||Emergency Center was established in the University Hospital.|
|June,1990||Information Processing Center was established.||Laboratory Animal Research Center was established.|
|April,1992||The Graduate School of Education (Master Course) was established.||University Hospital Intensive Care Unit was established.|
|April,1993||Research and Development Center was established.||University Hospital Blood Supply Center was established.|
|April,1994||School of Nursing was established.|
|April,1995||The Graduate School of Engineering (Doctor Course) was established.|
|April,1996||Health Care Center was established.|
|October,1996||Research Center for Lifelong Learning was established.|
|April,1998||Human Welfare Research Center was established.||Master's degree program for School of Nursing was established.
Pathology Center was established.
|April,1999||The Faculty of Education was reorganized into the Faculty of Education and Welfare Science.
Satellite Venture Business Laboratory was established.
|Hospital Informatics Center was established.|
|April,2000||Center for Instrumental Analysis was established.||University Hospital General Medicine Center was established.|
|May,2000||International Student Center was established (Ministerially ordained in April, 2003) .|
|Feburary,2001||University Education Development Support Center was established.|
|April,2001||Center for Research in Education and Human Development was established
(Research and Guidance Center for Classroom Teaching was reorganized.)
|Clinical Pharmacology Center (including Division of Clinical Trials) was established.|
|April,2002||Graduate School of Social Service Administration (Master Course) was established.
Information Processing Center was re-established.
Center for Community Research was established. (Abolished in March, 2007).
|The Medical Departments were reorganized into eight major departments.
University Hospital Rehabilitation Center was established.
|April,2003||Master's degree program for School of Medical Science established.
Institute of Scientific Research was established.
Regional Medical Liaison Center was established.
|October,2003||New "OITA UNIVERSITY" was established.|
|April,2004||National University Corporation OITA UNIVERSITY was established.|
|April,2005||Research Center for Applied Medical Engineering was established.
Center for Research and Development of Higher Education was established. (University Education Development Support Center was reorganized)
The University Hospital Medical Trainning Center was established.
|April,2006||Innovation Organization was established.
Department of Pharmaceutical Medicine was established. (Courses on Contribution)
|April,2007||The Graduate School of Economics (Doctor Course) was established.
Department of Medical Oncology was established. (Courses on Contribution)
Center for International Education and Research was established. (International Student Center was reorganized.)
|October,2007||Cancer Center was established.|
|April,2008||All Oita University faculties educational organization was established.
The Center for Academic Information & Library Services was established.
General Clinical Research Center was established.
Department of Endoprosthetic Surgery was established.
Center for Research and Development of Higher Education was reorganized.
Admission Research Center was established.
|May,2008||Emergency and Critical Care Center was established.|
|October,2009||Research Promotion Project was established.|
|Feburary,2010||Center for Community Medicine was established.|
|December,2010||Advanced Molecular Imaging Center was established.|
|April,2011||Innovative Collaboration Office was established.
Department of Pharmaceutical Medicine and Communication(Courses on Contribution)renamed.
|November,2011||Department of Medical Engineering(Courses on Contribution)|
|April,2013||Laboratory on Development of Innovative Technology for Electromagnetic and Dynamic Applications was established.
Gender equality promotion office was established.
|October,2013||Designated as Advanced Trauma, Emergency and Critical Care Center.|
|April,2015||Clinical Engineering Research Center was established.|
|January,2016||Center of Community plus was established.|
|April,2016||The Faculty of Welfare and Health Science was established.
The Faculty of Education and Welfare Science was renamed into the Faculty of Education.
Graduate School of Education was reorganized.(Advanced Studies on Professional Development of Teachers was established.)
Graduate School of Engineering was reorganized.