This article provides a systematic analysis of action figures, covering their definition, origins, and industry characteristics. It begins by defining an action figure as a humanoid model with fully articulated joints, designed around diverse themes such as movies, video games, and history, and produced via processes like injection molding to balance collectibility and playability. The piece then traces the origin of action figures to the 1:6 scale realistic models launched by Hasbro in 1962, and clarifies the evolving concept of "figurines"—from resin prototype components in pre-mass production to commercial products that now include unassembled kits and finished items, alongside the industry’s accepted naming conventions. Finally, it contrasts action figures with static figurines, highlighting that action figures prioritize dynamic movement and accessory versatility (backed by higher design costs), while static figurines focus on capturing a single, aesthetically striking moment with lower production barriers, thereby catering to distinct collector communities and commercial models.