The styles of "Hb-Sd" pavilion in ancient Egypt can be classified in three types : 'detached type', 'semidetached side-by-side type' and 'hieroglyph (semidetached back-to-back) type'. And in its transformation, the form of hieroglyph sign of "Hb-Sd" pavilion may take an important role. And in architectural representation of hieroglyph sign, 'hieroglyph type', the orientation of axis must be adjusted to 'south-north', i. e. Upper and Lower Egypt, direction.
