The present invention provides a component of a fishing reel that make it possible to achieve precise finished dimensions and improve the efficiency of the entire surface treatment while maintaining a bright and substantial external appearance with a metallic feeling and corrosion resistance. The component of a fishing reel according to the present invention is formed of a die-cast material and includes: a first surface treatment region including a coating layer and an anodic oxide film, the coating layer being formed on the die-cast material and formed of aluminum with a higher aluminum purity than the die-cast material, the anodic oxide film being formed on the coating layer； and a second surface treatment region including an anodic oxide film formed on the die-cast material.
