Treatment of left-sided pontocerebellar horn meningioma mainly includes conservative treatment with further observation, surgical resection, and further postoperative radiotherapy treatment. For left-sided or right-sided pontocerebellar horn meningioma, conservative treatment with further observation is recommended if the meningioma is less than 1 cm, the patient is elderly, or accompanied by severe cardiopulmonary dysfunction. If the left side of the cerebellar horn meningioma is larger than 2 cm, there are symptoms of cranial hypertension or neurological dysfunction such as unsteady gait or facial nerve palsy, surgical resection should be considered to avoid further compression and damage to the brain tissue and cranial nerves. Some pontocerebellar horn meningiomas may not be completely resected during surgery because they are tightly encircled by peripheral blood vessels and nerves, and further gamma knife or radiofrequency knife treatment is often recommended after surgery. The treatment of left pontocerebellar horn meningioma is more difficult, and it is recommended to go to the neurosurgery department of a tertiary hospital to decide the appropriate treatment according to the size of the tumor, the patient’s age and physique, and the patient’s postoperative pathological results.