Polyolefin resin composition containing anti-blocking agent

A polyolefin resin composition comprising 0.01 to 2.0 parts by weight of an anti-blocking agent per 100 parts by weight of a polyolefin resin, wherein said anti-blocking agent is selected from the group consisting of an organic anti-blocking agent, a mixture of organic anti-blocking agents and a mixture of organic and inorganic anti-blocking agents, wherein said organic anti-blocking agent is selected from the group consisting of a crosslinked acrylic resin, crosslinked polystyrene resin, crosslinked silicone resin, polyamide resin and polyester resin, and said anti-blocking agent has two or more maximum values in a weight-based particle size distribution, and a difference between a largest particle diameter corresponding to a maximum value of said particle size distribution, and a smallest particle diameter corresponding to a maximum value of said particle size distribution, is not less than 3.0 .mu.m.