Maria KO Ha-Fong is Chinese, born in Macau. She grew up in Hong Kong before joining the Congregation of the Salesian Sisters of Don Bosco in Italy. After her religious profession she studied Educational Sciences in Turin, Italy and Theology in Münster, Germany. 

She holds a Doctorate in Theology from the University of Münster, Germany. At present she is professor of New Testament Exegesis at the Pontifical Faculty of Educational Sciences Auxilium, Rome. She teaches also at the Holy Spirit Seminaryin Hong Kong and at several Catholic Seminaries in China and is often invited to organize courses on biblical Spirituality at the major centers of formation of her religious Congregation worldwide.. 

She is Consulter to the Pontifical Council for Promoting Christian Unity and member of the Pontifical Theological Academy.

She took part as an expert in the Synod of the Asian Bishops and in different meetings of the Federation of Asian Bishop Conferences.

She has written in the fields of Biblical Hermeneutics, Biblical Pastoral Ministry and Biblical Spirituality in Chinese, Italian, English and German.