Corneal foreign body is one of common diseases in ophthalmic emergency. Improper handling can cause different degree of corneal injuries, even corneal infection, perforation and endophthalmitis. Therefore, it is essential to eliminate corneal foreign bodies safely and effectively. This article mainly summarizes the influence of the characteristics of the corneal foreign bodies, the first diagnosis time after injury, corneal co-infection and the methods of weeding out the corneal foreign bodies upon the clinical prognosis of corneal foreign body removal, aiming to provide useful reference for medical practitioners in removing corneal foreign bodies.