Most of trigger finger in children is characterized by the fixed flexion contracture without pain. This can be treated through either the release or the excision of the first annular pulley on the volar side of metacarpal head. A clinical evaluation in our department has been achieved through 109 cases, 84 children diagnosed as trigger finger. The results are as follows:1. The ratio of male and female was 32(38.1%) and 52(61.9%). 2. The average age at operation is 2.7 years old. 3. There were 34 right hands(40.4%). 25 left hands(29.8%) and 25 both hands(29.8%). 4. Most of the disease are from thumb, 104 cases(95.4%) and the others from 4 cases of middle finger and 1 case of ring finger. 5. The flexion deformity of phalangeal joint and the Notta's node were shown in whole cases:The snapping sounds were occured in 24 cases(22.2%) 6. Complications brought 1 case of superficial skin infection and 4 cases of residual flexion contracture. Yet the latter are below 15°. 7. Whole 109 cases were performed with operation which resulted in successful treatment.