this is the conclusion of my thesis, it is a ungence, who can help me to correct the expressions? As a vital part of the socio-cultural life and an outstanding academic tradition in Great Britain ever since the Middle Ages, public schools have progressively evolved over the centuries. This process was, without a doubt, tortuous. Especially since the 20th century and the reforms it brought with it, the public school system has managed to thrive in a quickly modernizing British society while holding on to its elitist essence. After World War II, Labour’s growing strength allowed them to lead effective reforms in both society and in education. The desire to reorganize the public-school system was revived. In order to respond to the desire of the public, the headmasters of public schools spontaneously launched a 15-year reform program from1964 to 1979. Most of the concentration on public schools in the 20th century was on this self-reform which partly accommodated their relationships with public. However, the Fleming Report was the catalyst of this 15-year reform. Actually, it did not change the nature of public schools. In addition, we do observe that public schools have improved on the curriculum and public contact. Their curriculum before 20th century mainly concentrated on the classic courses such as religion, Latin and French. The science was considered useless and excluded. Their prefect system and corporal punishment were famous as well. The modern public schools nevertheless are different. Their curriculums are diverse from classic literature to science and sports while they have improved the relationships between teachers and students.