The most common problem with strabismus surgery is overcorrection, undercorrection, and recurrence of strabismus. The standard of cure for strabismus surgery is generally recognized by domestic and international experts as being no more than plus or minus 10 Δ in trigeminal degrees after surgery or in the presence of internal and external strabismus after surgery. The solution of strabismus surgery is precisely calculated according to the preoperative strabismus measurement, and the eye position of most of the children just after the surgery can reach the standard of cure. Moreover, nowadays, the adjustment suture technology is used, even if there is a certain degree of overcorrection or undercorrection, it can be adjusted immediately after the surgery. The biggest headache for doctors is the long-term results of strabismus surgery. Some children are discharged from surgery with excellent strabismus correction, but after a period of time parents may notice changes in their child’s eye position, even some children with exotropia may develop internal strabismus and some children with internal strabismus may develop exotropia. Our ability to maintain normal eye position requires central brain control of several extraocular muscles. However, after a period of time, the strabismus will gradually appear again due to poor central control and poor ability to control the convergence or separation of the child’s strabismus. In some children, because strabismus appears early and is not corrected in time, the visual function of both eyes does not develop normally. In this case, the central system cannot easily control the coordinated movement of both eyes, and the child is very prone to recurrence after surgery, and it is also difficult to restore the visual function of both eyes. The purpose of having children undergo network training after strabismus surgery is to improve the central control of the extraocular muscles through this perceptual training and to prevent strabismus from recurring. Active network training helps children establish binocular vision and compensate for the damage to binocular vision caused by strabismus. On the one hand, the establishment of binocular vision can lead to the maintenance of normal eye position by the center, and on the other hand, the control of eye position by the center can help the development of binocular vision. Network training allows visual development to enter a virtuous cycle as soon as possible after strabismus surgery. This is the importance of network training, which has a very positive effect especially in children who are young and have a high degree of plasticity. For children with exotropia who are more prone to regression, a three-step approach to network training should be performed: 1) post-surgical disinhibition training; 2) fusion training; and 3) stereopsis function training. One step at a time, eventually reconstructing binocular vision function and maintaining good eye position. At present, Children’s Hospital has achieved good results by using network training to prevent recurrence after external strabismus surgery. Children who have undergone network training have significantly fewer recurrences of strabismus than children who do not undergo training after surgery. Therefore, we remind parents not to think that network training can be done or not because they think their child has recovered well after surgery.