Mater Dei (abbreviated MD) is a school which as of now is currently run by the Sisters of the Ursuline Order, owing a total area of 18 acres and 3 buildings. It is a catholic girl school, which is held from K3 to G12. The average room student capacity is about 36 students. In addition, a grade level is divided into 4 rooms. Subjects in the school are Thai, English, Chinese, Science, Humanity, PE, Art, wooving, dancing, thai music, Math, ICT and orchestra. There are whole loads of activities to choose from.

The king of Thailand use to be learning here, when he was young.