The treatment effect of congenital hip dislocation has a great relationship with age. Most of the children can be cured if they can be treated correctly before the age of 6. If they are over 10 years old, the joint lesions are already very serious and need to be treated by combined surgery, but it has some influence on the treatment effect. The care and functional exercise after conservative treatment or surgical treatment is very important, which is related to the final treatment effect, during which how to prevent and reduce ischemic necrosis of the femoral head is the most important issue, and parents cannot rely on the doctor’s treatment, the doctor’s treatment only tries to remove the pathological changes of the hip joint, and the functional recovery also depends on the parents to carry out functional exercise for the child under the guidance of the doctor, the child’s age is small and the ability to exercise on their own is limited. As children are young, their ability to exercise on their own is limited, so parents need to patiently and permanently move their children’s limbs under the guidance of doctors, and they should not let their children stand and bear weight too early to prevent ischemic necrosis of the femoral head.