PROBLEM TO BE SOLVED: To provide a small animal pest control resin composition which can be colored into a desired color tone, capable of forming a small animal pest control resin molding excellent in weather resistance.SOLUTION: Provided is the small animal pest control resin composition comprising at least base resin, a small animal pest control agent, a controlled release assistant of the small animal pest control agent, an organic weather resistor, and metal oxide fine particles as an inorganic weather resistor. Preferably, the metal oxide fine particles have an average particle diameter of 1-100 nm.COPYRIGHT: (C)2015,JPO&INPIT【課題】所望の色調に着色可能で、耐候性に優れた小動物防除性樹脂成形体を成形可能な小動物防除性樹脂組成物を提供する。【解決手段】ベース樹脂と、小動物防除剤と、小動物防除剤の徐放助剤と、有機系耐候剤と、無機系耐候剤としての金属酸化物微粒子と、を少なくとも含むことを特徴とする小動物防除性樹脂組成物。好ましくは、前記金属酸化物微粒子は、平均粒子径が1~100nmであることを特徴とする小動物防除性樹脂組成物。【選択図】なし