With the advent of chemotherapeutics and antibiotic agents, there has been a great decrease in frequency of the intracranial complications resulting from otitis media. This has not been completely disappeared but some cases have been occasionally reported, in which sinus thrombosis is the leading complication, however meningitis and brain abcess are rarely reported. The present report is a case of all intracranial complications in chronic suppurative otitis media with systemic disease, which is rare. Authors recently observed a 24 years old house-wife suffering from otalgia, purulent otorrhea, hearing disturbance of the right ear, vomiting, dizziness and stuporous state. She was clinically diagnosed as acute mastoiditis, sinus thrombosis of the right side, 4 months of pregnancy and mitral stenosis. After the removal of sinus thrombus and during treatment, a temporal lobe abscess was newly discovered which was masked by the sinus thrombosis and meningitis. The abscess was drained through the mastoid tegmen with rubber tube. The post-operative course of the radical mastoidectomy was good. Authors would like to emphasize that it was satisfactory to drain temporal lobe abscess through the mastoid.