A high-pressure low-density polyethylene produced by a method comprising: a step (A) of melt-kneading a mixture containing a high-pressure low-density polyethylene and a radical initiator at a temperature T A (°C); a step (B) of melt-kneading the melt-kneaded product obtained in the step (A) at a temperature T B (°C); and a step (C) of melt-kneading the melt-kneaded product obtained in the step (B) at a temperature T C (°C), wherein the following Expression is satisfied: T A < T B < T C the high-pressure low-density polyethylene satisfying the following Expressions and : 0.362 ≤ ηL 1,256 % / ηL 10 % ≤ 0.466 wherein, ηL 10% represents a viscosity (Pa·sec) at the highest shear rate of the high-pressure low-density polyethylene at a strain of γ 0 = 10% of the high-pressure low-density polyethylene measured by a large amplitude oscillatory shear (LAOS) method at 150°C and 0.05 Hz, and ηL 1,256% represents a viscosity (Pa·sec) at the highest shear rate of the high-pressure low-density polyethylene at a strain of γ 0 = 1,256% of the high-pressure low-density polyethylene measured by the LAOS method at 150°C and 0.05 Hz, and 0.0282 ≤ I5 2,506 % / I1 2,506 % ≤ 0.0328 wherein, I1 2,506% represents an intensity of a first harmonic wave obtained by Fourier-transforming a response stress of the high-pressure low-density polyethylene at a strain of γ 0 = 2,506% of the high-pressure low-density polyethylene measured by the LAOS method at 150°C and 0.05 Hz, and I5 2,506% represents an intensity of a fifth harmonic obtained by Fourier-transforming a response stress of the high-pressure low-density polyethylene at the strain of γ 0 = 2,506% of the high-pressure low-density polyethylene measured by the LAOS method at 150°C and 0.05 Hz. a step (A) of melt-kneading a mixture containing a high-pressure low-density polyethylene and a radical initiator at a temperature T A (°C); a step (B) of melt-kneading the melt-kneaded product obtained in the step (A) at a temperature T B (°C); and a step (C) of melt-kneading the melt-kneaded product obtained in the step (B) at a temperature T C (°C), wherein the following Expression is satisfied: T A < T B < T C the high-pressure low-density polyethylene satisfying the following Expressions and : 0.362 ≤ ηL 1,256 % / ηL 10 % ≤ 0.466 wherein, ηL 10% represents a viscosity (Pa·sec) at the highest shear rate of the high-pressure low-density polyethylene at a strain of γ 0 = 10% of the high-pressure low-density polyethylene measured by a large amplitude oscillatory shear (LAOS) method at 150°C and 0.05 Hz, and ηL 1,256% represents a viscosity (Pa·sec) at the highest shear rate of the high-pressure low-density polyethylene at a strain of γ 0 = 1,256% of the high-pressure low-density polyethylene measured by the LAOS method at 150°C and 0.05 Hz, and 0.0282 ≤ I5 2,506 % / I1 2,506 % ≤ 0.0328 wherein, I1 2,506% represents an intensity of a first harmonic wave obtained by Fourier-transforming a response stress of the high-pressure low-density polyethylene at a strain of γ 0 = 2,506% of the high-pressure low-density polyethylene measured by the LAOS method at 150°C and 0.05 Hz, and I5 2,506% represents an intensity of a fifth harmonic obtained by Fourier-transforming a response stress of the high-pressure low-density polyethylene at the strain of γ 0 = 2,506% of the high-pressure low-density polyethylene measured by the LAOS method at 150°C and 0.05 Hz. <EOS>