Exact requirements vary by level (language institute vs. undergraduate vs. graduate) and by scholarship track, but commonly requested documents include your application form, proof of graduation, transcripts, passport copy, and financial documents if a visa is needed.
For the Sun Moon Korean Language Institute (a common stepping stone toward degree study), the admissions page lists items like an application form, graduation certificate, transcript, bank balance certificate, passport copy, photo upload, and (when relevant) a family-relationship certificate; it also notes that additional documents may be requested during review.
Scholarship applicants often add scholarship-specific documents: Eizat Zakbah said he reviewed “all the application forms and required documents” early and prepared recommendations and IELTS; Chintia Putri Hanaan described writing her essay for months to clearly connect her background to her plan.