The popular theory and technique of cleft lip repair has been classified to the theory and technique of cleft lip repaired under functional matrix surgery, the theory and technique of cleft lip repaired under reduction of anatomy marks as well as the theory and technique of cleft lip repaired under analysis result of geometry from previous cleft lip repaired. The characteristic of theory and technique to each class of method has been introduced, which is a new way to understand and hold the method of cleft lip repair.