St Mary's College Sulthan Bathery admissions are based on the University of Calicut's single-window system. St Mary's College Sulthan Bathery admissions are offered through regular channels as well as college-level applications for management and community quotas, and allocates hostel rooms on a first-come, first-served basis.

STMC Sulthan Bathery admissions are done at the undergraduate and postgraduate levels, where students can take admissions in BCom, BBA, BCA, and BSc. at the undergraduate level and MA, MSc, and MCom. at the postgraduate level. St Mary's College Sulthan Bathery prioritises admissions on the basis of application, through the University of Calicut's centralised system for regular degree programmes.