Why Pray Rosary During Eucharistic Adoration?

Because properly understood, the Rosary is a Christ-centered prayer, and thus can and should aid our adoration of our Eucharistic Lord Jesus Christ.

The Holy See in Rome has specifically addressed this issue. According to the Congregation for Divine Worship and the Discipline of the Sacraments, the Rosary may be prayed during Eucharistic adoration with exposition, provided that’s not the sole reason exposition of the Blessed Sacrament takes place:

One should not expose the Eucharist only to recite the rosary. However, among the prayers that are used during adoration, the recitation of the rosary may certainly be included, emphasizing the Christological aspects with biblical readings relating to the mysteries, and providing time for silent adoration and meditation on them (“Notes on the Recitation of the Rosary During Exposition of the Blessed Sacrament,” Notitiae (1998) XXXIV edition, 507-511).

This statement was reprinted in the U.S. Bishops’ Committee on the Liturgy’s Newsletter (Jan./Feb. 1999). That committee is now known as the Bishops’ Committee on Divine Worship.