To provide a structure of a folded paper airplane which achieves a less weight by cutting off a part of a folding paper and furthermore can build a frame for decorating the fuselage thereof utilizing the portion cut off.

In the folded paper airplane, a body part is formed through a central folding line dividing the rectangular folding paper in two, and left and right wing parts are made respectively on the left and right portions. Front rims of the left and right wing parts are formed on an angular folding line with the central folding line as reference and an overlap folded part for concentrating the center of gravity thereon is built almost at the longitudinal center of the body part. At the triangular folded part which is folded in toward the center along the angular folding line, a pair of left and right cut pieces is separated on a cutting line ending near the overlap folded part to build a decoration base for holding the fuselage having a groove grasping the lower side of the body part.