Prior to 1940, a after considered a beautiful area in the Magalla suitable for a school,the galle college had been started by Virtuous Philanthropist Muhammadiram Thomas de Silva Amarasuriya.Later the Devathura School also established in the above area by the Sudharmarama Temple.
In 1961 the government had been taken over by conecting the both colleges and renamed it as sudharma college.This is also the first school premises of Mr. Senarath Paranavithana in his life of teacher.
Sudharma, which had been evolving year by year, was severely damaged by the 2004 tsunami disaster.The tsunami claimed the lives of both teachers and students, as well as several buildings.But the Sudharma did not recoil. With the help of local and foreign aid, the community, teachers, students, parents With the hard work and dedication of the people, it was rebuilt.
Sudharma collgege is a mix school and also a symbol of national unity. By opening up Educational opportunities for tens of thousands of children step by step sudharma college is moving forward in the face of the challenges of the future world.