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This paper proposes a new kind of visual marker for the wearable computer based on Augmented Reality(AR) system. In the wearable AR system, the markers are often used as position tracking subsystems. But, these subsystems have some disadvantages such as the visual markers' small amount of data types, small recogniton area and so on. The visual maker we developed has two features. First, it has a large amount of marker types. The marker consists of 32 bits length of data area with error detection code. Second, it is a two stage marker recognition. When the marker is far away from the system, it is used as a position tracking mark. It includes a code recognition along with the position tracking when the marker is close to the system. These features enable a wearable AR system to have various utilities.