After the Great East Japan Earthquake 2010, earthquakes of magnitude 5.0 or higher occurred in Gyeongju and Pohang, shocking the public, and residents near the epicenter suffered great confusion and inconvenience in evacuating due to the unannounced earthquake. In the case of open spaces, such as parks and green areas, disaster prevention capabilities shall be established that can be used as a place of evacuation in the event of a disaster. But in Korea, which is perceived as relatively safe from natural disasters, most of them perform only basic functions such as rest, entertainment and health care. Therefore, It will analyze the status of the open space in Pohang, which was severely damaged by the earthquake, and conduct a survey on citizens who have had evacuation experience in the event of the actual Pohang earthquake, to analyze whether the open space served as a shelter in the event of a disaster, and suggest supplementary measures. In addition, the study highlighted the disaster prevention function when establishing the park green area policy in Pohang, suggesting and proving that the park green area is an essential urban infrastructure to protect the lives and safety of citizens in the event of a disaster.