The present invention provides an external wall panel which is excellent in ornamental design and weather resistance and a coating method for the external wall panel. The coating method is capable of providing a stable coating in the vicinity (including a slope area) of a corner edge area of a convex portion even if the area has cracks, hairline cracks, blowholes and/or pinholes. The resulting coating can solve the problem caused by cracks and the like. The external wall panel has a joint portion which has an excellent weather resistance and a matte appearance and looks glossy in the vicinity (including a slope area) of a corner edge area of the convex portion where cracks, hairline cracks, blowholes and/or pinholes tend to occur. An external wall panel of the invention comprises a base panel having a three-dimensional ornamental design surface, a lower coating layer formed on the surface of the base panel, a mid-coating layer formed on the lower coating layer, a first clear layer containing beads formed on the mid-coating layer, and a second clear layer made of a transparent layer or semi-transparent layer formed on the first clear layer wherein the second clear layer has a thick film layer portion in the vicinity of a corner edge of a convex portion of the three-dimensional ornamental design surface.