Purpose:To observe the ultrasonographic features of patients with persistent hyperplastic primary vitreous (PHPV). Methods: Thirty-two subjects (34 eyes) diagnosed with PH-PV were evaluated by ultrasonography. Results:.The ultrasonography demonstrated a retrolental mass extending from the optic disc to the posterior lens capsule, manifested as band,.regular triangle,.or inverted triangle shapes..The band-shaped echo was characterized as a linear band extended from the optic disc to the posterior lens cap-sule..The regular triangle-shaped echo was manifested as a membranous septum with a wide base extended from the optic disc to the posterior lens capsule, and the anterior part became narrower..The inverted triangle echo was characterized as a membranous septum with a narrow base extended from the optic disc to the posterior lens capsule,.and the anterior part become wider. Conclusion:.Ultrasonography is noninvasive and safe,.and can offer real-time display of intraocular structures. This is es-pecially important in individuals who are uncooperative or un-suitable for fundus examination due to media opacity. Com-bined with clinical feature, ultrasonography provides vital evi-dence for the diagnosis of PHPV..Thought observing ultra-sonographic feature, clinicians could evaluate the size, posi-tion and severity of lesions in PHPV patients,.and which would be helpful to determine the surgical approach and clini-cal prognosis.