To provide a method for producing an artificial hair fiber which does not fall off in a dye or a functional agent and an artificial hair fiber.SOLUTION: An artificial hair fiber according to the present invention is prepared by mixing a fiber material, an inorganic pigment, and a functional agent before spinning, spinning and cutting it. Therefore, the inorganic pigment and the functional agent do not drop off. Thereby, discoloration or malfunction of the artificial hair fiber does not occur. In addition, since the artificial hair fiber according to the present invention uses an inorganic pigment, it is superior in light fastness as compared with organic dyes and also highly safe against skin diseases such as allergies. Further, since the artificial hair fiber according to the present invention is colored by raw clothing, the functional agent is not covered with the dye. In this way, the functional agent can function effectively.(FIG.【課題】染料や機能剤に脱落が生じない人工毛髪繊維の製造方法及び人工毛髪繊維を提供する。【解決手段】本発明に係る人工毛髪繊維は紡糸前に繊維材料と無機顔料と機能剤とを混合し、これを紡糸、裁断して人工毛髪繊維を作製する。このため、無機顔料や機能剤の脱落が生じることがない。これにより、人工毛髪繊維の退色や機能不全が生じることがない。また、本発明に係る人工毛髪繊維は無機顔料を使用しているため、有機系の染料に比べて耐光性に優れ、またアレルギー等の皮膚疾患に対しても安全性が高い。さらに、本発明に係る人工毛髪繊維は原着により着色を行うため、機能剤が染料で覆われることがない。これにより、機能剤を効果的に機能させることができる。【選択図】図1