Surgical management of chondroblastoma of the femoral head in skeletal immaturity is challenging due to difficult access and a risk of epiphyseal plate injury. A 13-year old boy presented with left hip pain and limping for over 1 year. Based on imaging and pathology report, chondroblastoma was diagnosed. The size of the tumor was 1.7 cm in diameter. To avoid epiphyseal plate and articular damage, percutaneous radiofrequency ablation was performed under fluoscopic guidance with a 70o Celsius monopolar probe for 3 minutes’ duration repeated 3 times. The 2nd ablation procedure was performed after 3 months to minimize risk of recurrence. The pain had subsided at the 3 months follow up. Over the 4 years follow up period, this case shows good functional outcome without deformity of the femoral head or tumor recurrence.