Purpose: Knee inversion in children is a common deformity of the lower limbs. It affects the gait and walking of children. The purpose of this paper is to explore a minimally invasive alternative to osteotomy for corrective surgery using the epiphyseal growth potential of children. Methods: There were 16 cases, aged 4-12 years, 11 males and 5 females. 5 cases had idiopathic bilateral lower extremity knee valgus, 3 cases had knee valgus after traumatic proximal tibial fracture, 1 case had knee valgus due to multiple osteochondroma, 1 case had knee valgus after premature epiphyseal closure, 3 cases had tibial valgus, 2 cases had rickets knee valgus, and 1 case had epiphyseal dysplasia knee valgus. All 16 cases underwent temporary epiphyseal growth block with a figure-of-eight plate. RESULTS: At 3 months-3 years follow-up, 8 cases had the 8-plate removed and the knee inversion was completely corrected, and the remaining 8 cases were under observation. CONCLUSION: Using temporary epiphyseal block to correct the angular deformity of the lower limb is an idealized treatment method, and the 8-letter plate is minimally invasive, simple, safe, and does not require external fixation compared with osteotomy, and can be used to walk on the ground in the near future after surgery.