PROBLEM TO BE SOLVED: To provide a wire rod for a net material having durability to physical damage, in which corrosion caused by salt is suppressed, and also, adverse influence giving to organisms can be retained to the minimum.SOLUTION: Provided is a multilayer resin-coated metal wire (23) obtained by providing a plated wire (21) provided with the surface of an iron wire (11) with a zinc-containing plated layer (12) an ion release layer (15) made of a resin metal-kneaded material obtained by mixing metal-containing powder (16) capable of releasing metal ions showing organism repelling properties to the surface of a resin-coated wire (22) coated with a protective layer (14) made of an ionomer resin via an adhesive layer (13).SELECTED DRAWING: Figure 2【課題】物理的な損傷に対して耐久性があり、塩による腐食を抑え、なおかつ生物に与える悪影響を最小限に留めることができる網材用線材を製造する。【解決手段】鉄線(11)の表面に亜鉛含有めっき層(12)を設けためっき線(21)に、接着剤層(13)を介してアイオノマー樹脂からなる保護層(14)を被覆した樹脂被覆線(22)の表面に、生物忌避性を示す金属イオンを放出可能な金属含有粉(16)を樹脂に混合した樹脂金属混練材料からなるイオン放出層(15)を設けた、多層樹脂被覆金属線(23)を用いる。【選択図】図2