This prospective descriptive study aims to assess the importance of the immediate hip spica in a fracture of the femoral shaft in children at the Orthopedic Department of Liaqat University of Medica and Health science Jamshoro, Pakistan, for a one-year duration from June 2019 to June 2020. All children 1 to 5 years of age with femoral fractures who were admitted to the Orthopedic department within seven days of injury were included in the study. A total of 35 children, 24 (68.6%) boys and 11 (31.42%) girls, with a mean age of 3.8 years, were treated with an immediate hip spica cast. Their ages ranged from 1 to 5 years. The time of immobilization of the Spica cast ranged from 4 to 6 weeks (mean 5.4 weeks). In the second week, seven (22.85%) children had spica wetting, and breakage and reinforcement of spica was done, and 5 (14.28%) children had a spica wedging, and casting was applied to fix the angulation. No extension or hypertrophy was observed in the fractured limb. We concluded that immediate hip spica casting is a safe, inexpensive and definitive treatment of femoral shaft fractures in children aged 1-5 years.