An overhead guard of an industrial vehicle has a top and a plurality of pillars. The top is disposed above and covers an operator's seat. The top includes a dam body and a slope portion. The dam body is formed at its front edge and/or rear edge by bending upward a part of the top. The slope portion slopes down toward the dam body. The pillars support the top. At least one of the pillars has a groove extending in a longitudinal direction of the pillar so as to be obliquely upward or upright. Water on the top is guided by the dam body to drain onto the groove.
