The area of cyber security is like a game of chess, whose fundamental construction is explored in this paper. The area is described through the southward view which is technic oriented and the northward view that is awareness and management oriented. Referring to the medical division pattern, the author divides the area of cyber security into several sub-areas, peeks into their internal rules, and digs into the group of people who play crucially influential roles in that sub-area. The author expects to offer a view of observing the whole landscape and provides several key points which can help to draw the outline of this area.