Rosaryhill School under an earlier name was established in 1959, and ever since, it has grown like the proverbial mustard seed into a huge complex known by the present name. The Dominican Fathers who run the school belong to an international-wide Catholic religious order founded by Saint Dominic de Guzman. At present, its members operate universities, colleges, schools, hospitals and churches throughout the world and Rosaryhill School is just one of those institutions.

The school was originally called Dominican Primary School. Classes were conducted in the old building of Saint Albert the Great Priory which used to stand where Villa Monte Rosa is now. In 1961, the school was renamed Rosaryhill School and, in 1963, it was moved into the new premises behind Villa Monte Rosa.
In 1969, the Dominican Fathers in the School approved a motion presented by the late Mr. Graham Wong for the opening of a new section in order to allow Form 5 leavers to carry on their studies in commercial subjects. It was originally intended to be a small semi-independent commercial department, concentrating mainly on training steno-typists. However, the society in Hong Kong began to move very repidly after the turn of the decade and there was a great need for the Section to extend the training to other professional fields such as accountancy and business management. The Section was renamed in 1972 as the Business Studies Section to reflect the nature and composition of the course offered.
The commercial courses offered are constantly being updated and new ones are on planning stage soon to be introduced. Arrangements are also being made with certain unversity overseas to accept students who deserve our recommendation.

As part of a total education of youth, the Section has been sending, in the past few years towards the end of the normal schol year, groups of students to a university in Beijing for Putonghua course and others to UK for English course at the Hammersmith and West London College. In both these projects, students usually visit places of artisitic and cultural centers, after their academic courses.

Thus the Section endeavours to carry out the mission of Rosaryhill School which is to achieve a wholesome education of its students as conscientious individuals, as useful citizens and as authentic Christians.