Tianjin class refers to the use of Tianjin textbooks to recruit students in Tianjin, and then take the college entrance examination in Tianjin, with Tianjin scores as the standard. Tianjin Class School is positioned as an excellent source base of high-quality high schools in Tianjin. Through the analysis of the admission scores and senior high school entrance examination data of the top ten high-quality high schools in Tianjin. The goal of Tianjin class: to provide high-quality students for high-quality high schools in Tianjin, so that every student can attend their own satisfactory high schools.