1) Education is a unique social phenomenon in human society; (2) Education is a unique conscious activity of human beings; (3) Education is a unique form of transmitting experience in human society; (4) Education is a conscious social activity, aiming at influencing people's physical and mental development. The essence of education refers to the fundamental relationship between the internal elements of education and the fundamental characteristics of education as a social activity that distinguishes it from other social activities. As opposed to "educational phenomenon". Education is an activity to cultivate people. Education has existed since the beginning of human society, and its function is to transmit social production and life experience, promote human development and cultivate talents needed by society according to the requirements of a certain society. This basic feature exists in various social education activities and distinguishes it from other human social activities.