This study examined the progress and causes of panic disorder symptoms in a client by focusing on family culture, events, and sociocultural background. The study results revealed that the underlying cause of the client's anxiety was originated from family characteristics. The present study suggested a new perspective on panic disorder by delving into family relations and sociocultural background in Korea, such as son preference, academic background-oriented culture, and collectivism. This study intended to provide a new perspective on how the experiences within family could affect panic disorder and to propose family therapeutic method for dealing with panic disorder.