·AIM:To observe the effect of frontalis fascia petal suspension surgery for severe ptosis.·METHODS:Totally 52 patients 72 eyes with severe ptosis underwent the frontalis fascia petal suspension surgery.·RESULTS:After the follow-up of 1-6 yaer,mild insufficient corrections were in 2 patients 4 eyes,mild asymmetrical were in 2 patients 4 eyes;Other patients obtained the satisfactory effect,with eyelid radian and natural beautifulness.The eyelid function was restored.Some cases presented palpebral fissure dysraphism.There was no exposition keratitis occurrences.·CONCLUSION:The frontalis fascia petal suspension surgery is the most ideal method for severe ptosis.The height of upper eyelid limbus and suture position play the key effect in satisfactory operation.·