| 2015~ | Consultant, Taiwan Blood Services Foundation |
| 2014~ | President, Hematology Society of Taiwan |
| 2011~ | Counselor in large, Taiwan Society of Thrombosis and Hemostasis |
| 2010-2013 | Auditor, Taiwan Society of Blood and Bone Marrow transplantation |
| 2008-2014 | President, Taiwan society of Blood Transfusion |
| 2004-2015 | Treasure, Taiwan Society of Pediatrics |
| 2004-2008 | Counselor, Taiwan Society of Pediatrics |
| 2003~ | Counselor, Taiwan Society of Histocompatibility and Immunogenetics |
| 2002-2011 | Counselor, Taiwan Society of Free Radicals |
| 2001-2007 | President, Formosan Blood Purification Society |
| 2000~ | Counselor, Taiwan Society of Clinical Pathology |
| 1999-2015 | Associate Professor, Department of Laboratory Medicine and Pediatrics, College of Medicine, National Taiwan University |
| 1999-2008 | Counselor, Hematology Society of Taiwan |
| 1998~ | Counselor in large, Formosan Blood Purification Society |
| 1996-1999 | Secretary General, Hematology Society of Taiwan |
| 1993-2008 | Counselor, Society of Blood Transfusion, ROC |
| 1990-1993 | Secretary General, Society of Blood Transfusion, ROC |
| 1985-1999 | Lecturer, Department of Laboratory Medicine, College of Medicine, National Taiwan University |
| 1980-2015 | Visiting Staff, Department of Laboratory Medicine, National Taiwan University Hospital |