PROBLEM TO BE SOLVED: To provide a nonwoven fabric for a hot pack, which has such demand characteristics as flexibility and abrasion resistance which the nonwoven fabric is expected to have, and further is produced with excellent operability and at a low cost.SOLUTION: The nonwoven fabric for the hot pack employs a filament nonwoven fabric that comprises a polyester-based filament having a fineness of 0.5-5 dtex, and has a basis weight of 15-60 g/m, an abrasion resistance of 3 grade or more and a bending rigidity of 0.3 gf×cm/cm or less.【課題】カイロ用不織布において、求められる要求特性である柔軟性、耐摩耗性を有し、さらには、操業性が良く、低コストなカイロ用不織布を提供することを課題とする。【解決手段】繊度が0.5~5dtexのポリエステル系長繊維からなる、目付が15~60g/m2、耐摩耗性が3級以上、曲げ剛性が0.3gf・cm2/cm以下である長繊維不織布を用いたカイロ用不織布。【選択図】なし