Trapped 4^th ventricle hydrocephalus (TFVH) is occasionally presented as a series of sequel which came after inflammatory condition of central nervous system (CNS). Treatment of TFVH with intervention may aid preservation of life and neurological function. This is a report of TFVH patient who underwent improvement of neurology without complication, after navigation assisted lateral transcerebellar ventriculo-peritoneal (V-P) shunt system application. A Thirty-four years-old, female came to hospital with gait disturbance and dizziness. She had history of V-P shunt operation at lateral ventricle because of hydrocephalus due to listeria meningitis. General work-up and imaging study performed, and no other specific new finding except enlargement of 4^th ventricle. The cause of dizziness and syncope was deduced as TFVH. With Stealth navigation system's assistance, lateral transcerebellar (LTC) V-P shunt had planned. With navigation system's guidance, proximal catheter insertion was performed with confirmation of clear cerebrospinal fluid (CSF) drainage. Then, using 3-way connector, proximal catheters located at lateral and 4^th ventricle was connected to form a one way out system. Two proximal catheters and one valve system finally set. Patient's symptoms and hydrocephalus were gradually improved with shunt pressure management without specific complications. Complication of brainstem penetration with LTC V-P shunt for the treatment of TFVH may be reduced with navigation assistance technique. So, we are expecting more easy concern of LTC approach for the treatment of TFVH, by this technique.