The invention relates to a combined type colored sun-shading board and relates to sun-shading fittings applied to buildings. The combined type colored sun-shading board with light weight and rich decorative effects needs to be provided. The technical scheme of the invention is that a vertical face is totally a rectangular sun-shading board. The combined type colored sun-shading board is characterized by consisting of a lightweight section and 2 to 4 folded plates, wherein the folded plates are fixed on the surfaces of the two sides or on the two sides of the section respectively; 0 to 4 grooves for embedding insertion strips are formed on the edges or in the middle of the section, or 0 to 4 grooves for embedding insertion strips are formed on the edges or in the middle of the folded plates; and insertion strips are correspondingly embedded in the 0 to 4 grooves. The combined type colored sun-shading board is applied to the sun-shading boards of buildings.