Students are admitted to Moi Siongiroi Girls' High School by Merit and Choice. An interested student has to choose to learn at Moi Siongiroi Girls' High School and at the same time she must have equally excellent KCPE results.
Selection is done from the candidates of standard eight who have done their Kenya Certificate of Primary Education(KCPE) examinations. The school admits female students only.
Over the years Moi Siongiroi Girls has been the helm of providing quality and holistic education.The best brains in the country has learnt under Moi Siongiroi girls, we nurture our students to live under the strict principle of hardwork and integrity for their success.