Outer wall anticorrosive wood decoration system

The utility model discloses an outer wall anticorrosive wood decoration system comprising anticorrosive wood boards, hangers and a keel frame connected on the outer wall, wherein the anticorrosive wood boards are spliced abreast into a panel by anticorrosive wood ribbons; the back of the panel enables the anticorrosive wood ribbons to be longitudinally connected into a whole through a backing plate; the anticorrosive wood ribbons and the backing plate are fixed through screws; the upper and lower ends of the backing plate are respectively fixed with a connection wood block through screws; the connection wood block at the upper end is provided with a hanger installation groove with an upward opening; the connection wood block at the lower end is provided with a hanger installation groove with a downward opening; the hanger installation grooves of two adjacent anticorrosive wood boards are elongated and correspond to each other up and down; and the two adjacent anticorrosive wood boards are connected with a tra