AIM:To explore the best suturing method of conjunctival graft under microscope. METHODS:Ninety-two eyes of pterygium or conjunctival bump patients of 2005-2010,who underwent operation in our hospital,were collected.All patients were excised under microscope with conjunctival autograft, continuous side whipstitch suture were performed in the operation with 10- 0 line. One week after the operation, sutures were removed under the slit lamp.Patients were followed up for two months, incision inflammation, healing, leakproofness, and other complications were observed. RESULTS:After continuous side whipstitch suture, conjunctiva was of good leakproofness, small reaction, fewer complications and no conjunctival cysts and granulation. CONCLUSION:Continuous side whipstitch suture is a good suturing method, and can improve the operation efficiency, reduce postoperative complications.