Chronic otitis media is usually divided into three types: simple, osteochondritis, and cholesteatoma. The main symptoms of chronic simple otitis media are conductive deafness, intermittent intra-ear pus, and simple central perforation of tympanic membrane tension. Osteitis media, also known as granuloma type, is usually complicated by chronic secretory otitis media. Due to negative pressure in the middle ear tympanic chamber, continuous mucosal swelling in the middle ear, poor drainage of various channels in the tympanic chamber, and persistent inflammation, it leads to mucosal granulomatous proliferation, which can cause bone destruction in the middle ear of the auditory bone or mastoid process in the long term, often with persistent pus flow in the ear or ear pain, a small amount of bleeding in the ear, and hearing loss as the main symptoms. Mixed deafness, air-bone conduction separation, CT examination can be seen in the middle ear mastoid cavity bone destruction, hearing bone chain interruption. In cholesteatoma type otitis media, the main symptoms are chronic recurrent foul pus flow in the ear, mixed deafness, enlarged middle ear mastoid cavity with sharp edges and interrupted or absent auditory chain on CT examination. The main treatment for chronic simple otitis media is to strengthen resistance, prevent upper respiratory tract infection, prevent water in the ear, cleanse the ear and administer medication, usually with oxyfloxacin ear drops. After 2 months of complete disappearance of pus, tympanic membrane perforation repair can be considered. The main treatment for osteoclastic and cholesteatomatous otitis media is radical mastoidectomy, which completely removes the mastoid lesion of the middle ear and forms a large continuous smooth cavity for easy drainage and observation of the lesion to achieve complete cure of otitis media, and if possible, partial or complete hearing bone prosthesis can be transplanted to restore and reconstruct hearing function in one phase. The most serious complications of osteochondritis and cholesteatoma otitis media are the persistence of sarcoid and cholesteatoma in the middle ear cavity, which constantly erodes and destroys the surrounding bone, causing weakness of the tympanic chamber and mastoid canopy between the middle ear and the temporal lobe of the brain, causing pus to enter the brain through these weaknesses and causing a number of intracranial complications, the most serious intracranial complication being the formation of intracranial abscess, which can be a serious threat to life.