A six-direction indicator is provided in an XYZ rectangular coordinate system and includes a shaft on an X axis, a rotation member rotatable around an axis inclined with respect to a rotation axis, guide pins provided upright on the rotation member, and a guide member provided around the X-axis to surround the rotation member. The guide member has a zigzag slit track bent alternately in a mountain-like shape and a valley-like shape in the X direction at intervals of 60° around the X-axis. The guide pins are inserted in the slit track and move around on the slit track by rotation of the shaft. The device indicates one of the positive and negative directions on the U, V, and W axes crossing one another at intervals of 60° around the X-axis.