·AIM:To evaluate the safety of small incision cataract extraction by manual nucleus division and intraocular lens(IOL)implantation for age-related cataract to analyze the intrao-perative complications and put forward correspond-ing treatment measures.·METHODS:A total of 122 eyes of 122 cataract cases were performed with small incision cataract extraction by manual nucleus division and IOL implantation through surface anesthesia.·RESULTS:Intraopertive compications included scleral flap gap in 2 eyes(1.6%),iris prolapse in 4 eyes(3.3%),iridodialysis in 3 eyes(2.4%)and posterior capsule rupture in 7 eyes(5.7%),postoperative complication included strip shaped opacity in corneal endothelium in 10 eyes(8.2%)and anterior chamber fribrinous exudates in 3 eyes(2.4%).·CONCLUSION:Small incision cataract extraction by manual nucleus division and IOL implantation is a safe,simple and effective operative method.The treatment of lens nucleus is the key of the operation and also the important step to prevent complications.·