A heat-shrinkable multilayer film for being filled with contents, the film comprising: an outer surface layer comprising a heat-resistant thermoplastic resin; an intermediate layer comprising a polyamide-based resin; and an inner surface layer constituted by an ethylene-based copolymer, an adhesion strength between the inner surface layers after treatment with 80°C hot water being not less than 10 N/15 mm, as determined according to the description, the ethylene-based copolymer comprising one or a mixture of components selected from ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer, ethylene-methacrylic acid copolymer, ethylene-methyl acrylate copolymer, ethylene-ethyl acrylate copolymer, and ethylene-butyl acrylate copolymer, and the ethylene-based copolymer having a crystal melting enthalpy ratio at 80°C and below of not less than 50%, wherein the crystal melting enthalpy is determined using a DSC curve determined by heating a sample resin to 200°C in conformance with JIS K7121, and based on the peak area of the temperature range from the start to the end of melting, the crystal melting enthalpy at 80°C and below is determined of the area of that portion based on the results of calculating the entire crystal melting enthalpy, the crystal melting enthalpy ratio is then determined by the following formula: crystal melting enthalpy ratio (%) = (crystal melting enthalpy value at specified temperature (80°C) and below) / (entire crystal melting enthalpy value) x 100; the film further comprising an inner layer as a layer adjacent to and on the inside of the inner surface layer, and the inner layer comprising one or a mixture of components selected from low-density polyethylene (LDPE), very-low-density linear polyethylene (VLDPE), linear low-density polyethylene (LLDPE), ethylene-propylene copolymer (PP-Et), ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer, ethylene-methacrylic acid copolymer (EMMA), ethylene-methyl acrylate copolymer, ethylene-ethyl acrylate copolymer, and ethylene-butyl acrylate copolymer. an outer surface layer comprising a heat-resistant thermoplastic resin; an intermediate layer comprising a polyamide-based resin; and an inner surface layer constituted by an ethylene-based copolymer, an adhesion strength between the inner surface layers after treatment with 80°C hot water being not less than 10 N/15 mm, as determined according to the description, the ethylene-based copolymer comprising one or a mixture of components selected from ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer, ethylene-methacrylic acid copolymer, ethylene-methyl acrylate copolymer, ethylene-ethyl acrylate copolymer, and ethylene-butyl acrylate copolymer, and the ethylene-based copolymer having a crystal melting enthalpy ratio at 80°C and below of not less than 50%, wherein the crystal melting enthalpy is determined using a DSC curve determined by heating a sample resin to 200°C in conformance with JIS K7121, and based on the peak area of the temperature range from the start to the end of melting, the crystal melting enthalpy at 80°C and below is determined of the area of that portion based on the results of calculating the entire crystal melting enthalpy, the crystal melting enthalpy ratio is then determined by the following formula: crystal melting enthalpy ratio (%) = (crystal melting enthalpy value at specified temperature (80°C) and below) / (entire crystal melting enthalpy value) x 100; the film further comprising an inner layer as a layer adjacent to and on the inside of the inner surface layer, and the inner layer comprising one or a mixture of components selected from low-density polyethylene (LDPE), very-low-density linear polyethylene (VLDPE), linear low-density polyethylene (LLDPE), ethylene-propylene copolymer (PP-Et), ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer, ethylene-methacrylic acid copolymer (EMMA), ethylene-methyl acrylate copolymer, ethylene-ethyl acrylate copolymer, and ethylene-butyl acrylate copolymer. crystal melting enthalpy ratio (%) = (crystal melting enthalpy value at specified temperature (80°C) and below) / (entire crystal melting enthalpy value) x 100; the film further comprising an inner layer as a layer adjacent to and on the inside of the inner surface layer, and the inner layer comprising one or a mixture of components selected from low-density polyethylene (LDPE), very-low-density linear polyethylene (VLDPE), linear low-density polyethylene (LLDPE), ethylene-propylene copolymer (PP-Et), ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer, ethylene-methacrylic acid copolymer (EMMA), ethylene-methyl acrylate copolymer, ethylene-ethyl acrylate copolymer, and ethylene-butyl acrylate copolymer.