Abstract: A male Golden Retriever was 10.6 years old, with limb weakness, ataxia, diminished proprioception, and severe symptoms in the left limbs. The pupils of both eyes had normal light reflexes. The results of blood cell count test showed no obvious abnormality. The test results of serum biochemical indicators showed that the blood glucose content was 7.07 mmol/L（the reference range was 3.30-6.10 mmol/L）, which was slightly high, and no other obvious abnormalities were found. Examination results of cardiac echocardiographic suggested left ventricular systolic dysfunction. Magnetic resonance imaging（MRI） examination results showed that there was T2 hyperintensity in the right temporoparietal region and the mass caused compression and displacement of the right ventricle; the mass was uniformly enhanced after the use of contrast agents, and there was a clear “dural tail sign” on the edge of the mass, suggesting that an extra-axial tumor. A craniotomy was performed to remove the tumor, which was found to be a meningioma（meningeal endothelial type, WHO grade Ⅰ） on histopathological analysis. No epilepsy was seen one week after the operation, and the prognosis was good. The results suggested that the early surgical intervention of meningioencephaloma could effectively control the neurological symptoms of dogs.