The earliest double admission got two admission notices. The official original text of double admission to American universities is conditional admission, which means "the school can admit you, but you have to meet the requirements of the school." Most of these conditions focus on students' language achievement. For example, a university in the United States requires a TOEFL score of 80, while students only get 65. Then students can go to the language center of the school first and meet the requirements of the school before entering the school to start the study of university professional courses. The word "double" for double admission means that the university sends an admission notice, and the language center of the school also sends an admission notice. There are Michigan State University, Syracuse University, case western reserve university, University of Delaware, etc. When the dual admission program first entered China, these schools were also very popular with China students.

In fact, this admission mode also has its own advantages and disadvantages. The advantage is that students can go to school if their language scores fail to meet the direct admission criteria. The disadvantage is that students can only take language courses before starting degree courses, and most students have to get the corresponding TOEFL or IELTS scores again before entering degree courses, which brings some uncertainty to students' future study.

Because this kind of double admission appeared earlier and lasted for a long time, the proportion of China students in the language center was so large that the school cancelled the double admission. For example, in case the Western Reserve University ceases to exist, the dual admission of undergraduate students.