The so-called insurance usually refers to physical exercise, disease prevention, scientific work and rest system, medical care system and other activities to protect children's physical and mental health, enhance physical fitness and promote growth and development. The so-called teaching usually refers to the process of purposefully, planned and systematically creating a good environment, reasonably arranging children's lives, cultivating children's good habits, enriching children's knowledge and experience, developing children's intelligence and promoting children's good social adaptability. Although there are different emphases on the definition of "protecting harmony and teaching", in the actual implementation process, they are mutually contained and infiltrated, that is, there is teaching in protecting harmony and teaching in protecting harmony. Protecting children's health is an important aspect of today's protection. The new concept of health should include children's physical, psychological and social adaptation. Protection and education are inseparable. Without education, you will miss the opportunity of kindergarten education, thus delaying the cultivation of children's independent ability, resulting in the situation that nurses take care of children with one hand. Without conservation education, it does not conform to children's physiological and psychological characteristics, and it is difficult to achieve the effect of education if we ask too much of them, which is not conducive to children's healthy growth. Therefore, as the two main contents of kindergarten education, conservation and education jointly promote the harmonious development of children's body and mind.