Tear duct rupture is a common ocular trauma disease in children, and the main complication of tear duct rupture is tear spillage. Children and young adults are the most common cases of lacrimal duct rupture. The difficulty of lacrimal duct rupture anastomosis and the safety of the postoperative support tube are challenging due to the characteristics of children’s mobility, lack of cooperation with treatment and delicate tissues. Intraoperative lacrimal support tubes are implanted in the lacrimal duct to maintain the dilated state of the lacrimal duct, and silicone tubes are often chosen. Postoperatively, patients are routinely observed for wound healing, lacrimal duct support tube position, eyelid and lacrimal punctum position. The sutures on the conjunctival and skin surfaces are removed 1 week after surgery, as appropriate. The lacrimal duct support tube was removed 3 months after surgery, and the lacrimal ducts were routinely flushed and the results were recorded at the first and second weeks, and at 1, 3, and 6 months after the removal of the tube, respectively. In conclusion, the choice of the new silicone tube RS-1 lacrimal drainage tube, which has an invisible appearance, safe placement, and minimal tissue damage, combined with minimally invasive and precise surgical operation and suturing, is the key to successful surgery in pediatric patients with lacrimal duct dissection unlike adults.