Parent-child early education refers to grasping the "critical period" for good education, which can get twice the result with half the effort. The effective education method of "critical period" is usually called parent-child early education.

Studies at home and abroad show that the age from zero to six is the "critical period" for children's intellectual development. During this period, children are particularly sensitive to external stimuli and easy to accept external information.

Early education generally refers to early education. In a broad sense, it refers to education from birth to preschool, and in a narrow sense, it mainly refers to early learning in the above stages. In some countries, early learning of reading, writing and calculation has been explored and experimented in early childhood education and early formal education.