The present invention relates to a metal panel used for decoration on the roof or inner and outer walls of a building, and in particular, by improving the shape of the bent portion to prevent rainwater from penetrating or lifting the metal panel by the wind after construction, by mechanically bending It is suitable for mass production.;The subject innovation has a main body portion 10 having a free end on four sides; First and second bent portions (20, 22) provided at free ends adjacent to the main body portion (10) and bent in the same direction; A third bent part and a second bent part that are positioned to face the first bent part and the second bent part 20 and 22 and are bent in opposite directions to the first bent part and the second bent part 20 and 22; Four bent portions (30, 32); Where the first bent portion and the second bent portion 20, 22, the third bent portion and the fourth bent portion 30, 32 are respectively overlapped with each other in a vertical direction overlapping the curled portion 40 It is characterized in that is formed.;According to the present invention, since the curled portion and the vertical protrusion are formed at the corners of the art panel, rainwater flows back through the corners, thereby preventing the penetration of the source.
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