A bicycle component control device basically includes a bracket and a bicycle component operating unit. The bicycle component operating unit is disposed in an interior space of the bracket. The bicycle component operating unit includes an operating member protruding toward outside of the interior space. The bracket includes a plurality of bracket parts being separate pieces from each other and non-movably fixed to at least one adjacent one of the plurality of bracket parts that define the interior space. The plurality of bracket parts is further configured relative to each other such that a connecting seam formed on the bracket extends along at least three of a mounting surface, an upper surface, a lower surface, a first side surface and a second side surface of the bracket.