Since year 2002, the newly introduced rolling college admission type has grown in its portion steadily throughout all universities. The most of related studies in effects of admission types and factors on academic achievement in college generally agree that rolling admission entrants have better academic success, and the high school GPA (HGPA) is much reliable indicator of academic success in college than the Korean Scholastic Achievement Test (KSAT) scores. But theses known studies generally lack in analysis for students of any specific study fields, rather the studies were conducted for overall college students as a whole. Since professional architectural program is known to composed of much rigid curriculum and it demands much commitment from enrolled students, this study is to examine the outcome of widely spread conventional rolling admission type for the architecture programs, and analyze the effects of mostly used admission factors (KSAT scores, HGPA, interview scores) on academic achievement of program entrants. The study found that conventional rolling admission process is not as effective to students of professional architectural program as widely assumed, and the admission factors generally failed to predict academic performances of enrolled students in this program. The study compares results of each admission factors with its predictability on academic achievements, and suggests that new sets of admission factors might needed to develope better judgement in reviewing program applicants with better potential for this field. Also the study notes that further studies in regard to investigating effective admission process for professional architectural programs are needed.