In clinical practice, we commonly see the following symptoms: inward slanting of the eyes, diplopia, facial palsy, choking in swallowing, unsteady gait, headache and dizziness. One or more cerebral nerve palsy is often an important feature of brainstem tumors, and the first symptom is cerebral nerve palsy in 24% of cases. The most common brain nerve damage is the spreading nerve, followed by the facial nerve and the linguopharyngeal and vagus nerves. The symptoms may include intraocular obliquity and diplopia, facial palsy, choking on swallowing, ptosis, pupil dilation, and loss of light reflex. If a school-aged child develops inward eye tilt, peripheral facial palsy, slurred speech, choking on swallowing and unsteady gait, the possibility of this disease should be thought of. When there is cerebral nerve palsy on one side and contralateral pyramidal fasciculus sign, the diagnosis of brainstem tumor is basically clear and further neuroimaging is needed.