Z-shaped self-insulation wallboard convenient to install

The utility model discloses a Z-shaped self-insulation wallboard convenient to install. The Z-shaped thermal insulation wallboard comprises a Z-shaped thermal insulation wallboard body, protruding parts are formed at the diagonal positions of the two sides of the Z-shaped heat preservation wallboard body in an extending mode. The section of the Z-shaped heat preservation wallboard body is of a Z-shaped structure. Metal mesh plate layers are embedded into the two sides of the Z-shaped thermal insulation wallboard body; heat preservation cavities which are distributed at equal intervals are formed in the positions, close to the metal net plate layer, of the two sides of the Z-shaped heat preservation wallboard body; square holes are formed in the positions, close to the two opposite angles,of the outer wall of one side of the Z-shaped heat preservation wallboard body, and inserting holes distributed at equal intervals are formed in the positions, close to the two square holes, of the outer walls of the two side