To foster fellowship among Old Boys of St.Joseph's College Colombo 10 and those interested in the welfare of the College.

To establish a bond of unity among all Old Boys of the College and foster them in a true feeling of loyalty to their alma mater.

To encourage the religious educational, cultural, recreational and sporting activities of present and past students of the College who are resident or employed in the Ja-Ela, Wattala, Kelaniya, Mahara and Gampaha electoral districts.

To collaborate with the Rector St.Joseph's College, the Parent Union, the Parent-Teacher Association, the Welfare Association, the Old Josephian`s Sports Club and any other association in any project or undertaking with similar aims and objectives.

To participate in social, sports and recreational activities, and undertake or partake in projects or programmes that are of services to the community.

To collect and receive subscriptions and donations in the furtherance of its aims and objectives either from members or other persons, and to hold property, borrow money, supply same and any other funds and property for any other objectives or for the general purposes of the Branch Union.