Because of the problems of the traditional entrance examination for doctoral student, the introduction of the policy "de-administration in higher education", the continuous implementation of application-examination system in foreign countries and the successful practice of applicationexamination system in our country, application-examination system is becoming a favored selection method used by universities to enroll doctoral student. What's more, application-examination system takes the advantages of selecting high-quality doctoral student, and safeguarding the interests of candidate. But the form of comprehensive examination is single; the implementation of application-examination system easily arises the phenomenon of unfair recruitment. Based on these problems, this paper suggests that application-examination system should enrich the form of comprehensive examination, and improve regulation system to ensure that information is fair and open.