The admission process for Master's programs at École Polytechnique is highly competitive. Applicants need to submit a complete application package, including their academic transcripts, a CV, a motivation letter, two reference letters, and proof of language proficiency. The selection process typically involves a review of academic achievements, research potential, and alignment with the chosen program’s focus areas.

For undergraduate admissions, École Polytechnique typically does not require an entrance exam. However, some Master's programs may require additional tests or assessments, especially for candidates with international degrees. The admission process also evaluates academic records, personal motivation, and recommendation letters.