PROBLEM TO BE SOLVED: To provide a foamed resin body with termite-proofing effect, wherein a termite-proofing chemical preparation, which contains water as the base and is highly stable, is mixed, and to provide a method for producing the same.SOLUTION: There is provided a method for producing the foamed resin molded body with termite-proofing effect including: pre-foaming a foamable polystyrene resin using a pre-foaming apparatus 1； spraying the termite-proofing chemical-containing termite-proofing preparation to the pre-foamed particles introduced to a coating apparatus 5 through a silo 2 and a measuring device 3 from a preparation agitator 4 while stirring； maturing and drying in the silo 6 after evenly adhering the termite-proofing chemical preparation on surfaces of the particles； and foam-molding the pre-foamed particles coated with the termite-proofing chemical preparation using a molding machine 11 after repeating similar operations as needed.【課題】水をベースとする安定性の高い防蟻製剤を混入させた防蟻性の樹脂発泡体及びその製造方法を提供する。【解決手段】予備発泡装置１で発泡スチロール樹脂を予備発泡させ、サイロ２、計量器３を経て被覆装置５に導入された予備発泡粒子に、撹拌しながら製剤攪拌機４から防蟻薬剤を含有する防蟻製剤を噴霧して、その粒子表面に防蟻製剤を均一に付着させた後、サイロ６にて熟成・乾燥させ、必要に応じ同様の操作を繰り返した後、防蟻薬剤で被覆された予備発泡粒子を成型機１１で発泡成型して防蟻性を有する発泡樹脂成形体とする。【選択図】図１
