The invention discloses a fixing structure of a hardware decorative sheet and a plate. The fixing structure comprises the square plate, positioning holes are formed in the four sides of the square plate, a plate groove is formed in the middle side of the front end of the square plate, a circular rotating groove is formed in the middle of the left end in the plate groove, a rotating column is rotatably mounted in the circular rotating groove, a circular cavity is formed in the right side of the square plate, a first rotating hole is formed in the left side in the circular cavity, and a second rotating hole is formed in the right side in the circular cavity. A vertical plate is pinched through fingers and rotated in the front-rear direction, and thus a metal decorative plate is driven to beoverturned in the front-rear direction; through annularly and evenly arranged protruding strips, when abutting rings abut against rubber circular protrusions, the rotating resistance of the abutting rings is increased, springs cannot be twisted under normal rotating, thus the abutting rings keep to rotate synchronously with the rotating column, and thus the rotating resistance of the rotating column is increased; and when the rotating column stops rotating, the hardware decorative plate is kept in a stable state, and different decorative reflective styles of the hardware decorative plate are increased.