Sit Song has completed advanced physical therapy certificate in 2008 in Singapore which was equivilent to bachelor degree in physical therapy in Cambodia. He has graduated with master degree at the age of 33 years from National Institute for Public Health, Cambodia. He is the President of the Cambodian Physical Therapy Assocaition and also a Rehabilitation Standards Project Manager of the International Committee of the Red Cross, Cambodia. Since 2005, Sit has worked for rehabiliation sectors in Cambodia. He has gradaully promoted from junior physiotherapist in 2005 to senior physiotherapist in 2008, to physiotherapy mentor in 2010 and starting from 2011 he has been working as project and program mangaers in rehabilitation in Cambodia. Currently he is a part-lecturer of school of physiotherapy in Cambodia.