This paper is a case study of the marriage relationship in the scholar groups during the Northern Song Dynasty. It tends to occur during the students’ initiation and their beginning stage when the teacher-student relationship is changed into the affinity. When looking for a son-in-law from their students, teachers are more concerned about the development prospects of the students. The marriage of this type causes the expanded range of interpersonal communication, exchanges more directly, and promotes the students to pass on the academic heritages consciously.