To provide a crosslinked polyethylene-based resin article crosslinked by radiation, without essentially requiring the use of an additive resin, and capable of achieving an excellent creep resistance when it is formed as a tubular material, and to provide a polyethylene resin and its resin composition used for manufacturing the same.

A crosslinked polyethylene resin article crosslinked by radiation is characterized in that when a relaxation time spectrum function is obtained under a specific condition, the curve of the spectrum function has a minimum value, the minimum value is present between 50 to 100 seconds of the relaxation time, and its value (H(λ)Pa) is ≤10,000.