A surface orientation sensing structure, comprising: six printed circuit boards (41, 42, 43, 44, 45, 46), wherein the printed circuit boards are electrically connected to each other and form a regular hexahedron; and six shafts comprising a top shaft, a bottom shaft and four other shafts, wherein each shaft comprises a shaft body, wherein the bottom of each shaft body is provided with a disc base, the bottom of the disc base is fixed with a chassis copper foil, and the chassis copper foil is provided with three brush sheets protruding toward one side of the printed circuit board side, namely a first brush sheet, a second brush sheet, and a third brush sheet; where a through-hole is formed at the center of the circle on the printed circuit board, a convex column corresponding to the through-hole and penetrating through the chassis copper foil is provided at the center of the bottom surface of the disc base, and the shaft is inserted into the through-hole through the convex column, so as to be rotatably mounted on the printed circuit board along a central axis thereof; a main control chipset and a cell for supplying power to the main control chipset are provided in the regular hexahedron, the main control chipset is electrically connected to the circular copper foil, and when one of the shafts is rotated, the main control chipset receives a level change signal caused when the third brush sheet sweeps the arc-shaped copper foil; and the surface orientation sensing structure further comprises a spherical cover formed by closing an upper semi-spherical cover and a lower semi-spherical cover, the regular hexahedron is provided in the spherical cover, and the shaft penetrates the spherical cover and extends beyond the spherical cover, characterized in that, the outer surface of each printed circuit board is provided with a circular-ring-shaped copper foil with the center at the center of the printed circuit board, four arc-shaped copper foils with a common center and equal radius are provided at equal intervals on the periphery of the circular-ring-shaped copper foil, and the circular-ring-shaped copper foil and the arc-shaped copper foil have the same center; when the chassis copper foil is rotated with the corresponding shaft, the sweeping paths of the first brush sheet and the second brush sheet are located at the circular-ring-shaped copper foil and the first brush sheet and the second brush sheet are electrically connected to the printed circuit board; in addition, the sweeping path of the third brush sheet covers the four arc-shaped copper foils, and when the third brush sheet sweeps the arc-shaped copper foils, the third brush sheet is electrically connected to the printed circuit board. six printed circuit boards (41, 42, 43, 44, 45, 46), wherein the printed circuit boards are electrically connected to each other and form a regular hexahedron; and six shafts comprising a top shaft, a bottom shaft and four other shafts, wherein each shaft comprises a shaft body, wherein the bottom of each shaft body is provided with a disc base, the bottom of the disc base is fixed with a chassis copper foil, and the chassis copper foil is provided with three brush sheets protruding toward one side of the printed circuit board side, namely a first brush sheet, a second brush sheet, and a third brush sheet; where a through-hole is formed at the center of the circle on the printed circuit board, a convex column corresponding to the through-hole and penetrating through the chassis copper foil is provided at the center of the bottom surface of the disc base, and the shaft is inserted into the through-hole through the convex column, so as to be rotatably mounted on the printed circuit board along a central axis thereof; a main control chipset and a cell for supplying power to the main control chipset are provided in the regular hexahedron, the main control chipset is electrically connected to the circular copper foil, and when one of the shafts is rotated, the main control chipset receives a level change signal caused when the third brush sheet sweeps the arc-shaped copper foil; and the surface orientation sensing structure further comprises a spherical cover formed by closing an upper semi-spherical cover and a lower semi-spherical cover, the regular hexahedron is provided in the spherical cover, and the shaft penetrates the spherical cover and extends beyond the spherical cover, characterized in that, the outer surface of each printed circuit board is provided with a circular-ring-shaped copper foil with the center at the center of the printed circuit board, four arc-shaped copper foils with a common center and equal radius are provided at equal intervals on the periphery of the circular-ring-shaped copper foil, and the circular-ring-shaped copper foil and the arc-shaped copper foil have the same center; when the chassis copper foil is rotated with the corresponding shaft, the sweeping paths of the first brush sheet and the second brush sheet are located at the circular-ring-shaped copper foil and the first brush sheet and the second brush sheet are electrically connected to the printed circuit board; in addition, the sweeping path of the third brush sheet covers the four arc-shaped copper foils, and when the third brush sheet sweeps the arc-shaped copper foils, the third brush sheet is electrically connected to the printed circuit board.