AIM:To summarize the clinical experience on inverse planting silicone tube with spherical end for treatment effects for chronic dacryoadenitis． METHODS:Sixty-five cases(70 eyes)of chronic dacryocystitis patients were involved and underwent inverse planting silicone tube with spherical end under local anesthesia, then after the surgery they all were received anti-infective treatment. Irrigation of lacrimal passage were performed every day for the first three days, once a week for 4 times, then once a month for 5 times. RESULTS:All the patients were successfully implanted with silicone tube with spherical end. No secretion was found bylacrimal passages irrigating during 16 months observation period. 64 eyes (91.43%) were cured completely, 6 eyes (8.57%) were improved significantly. CONCLUSION:The treatment for chronic dacryocystitis by inversely planting silicone tube with spherical end is a perfect method. It is simple, safe, timesaving, less bleeding without incision, scar and has high successful rate. So this operation is worth being spread widely.