PURPOSE: To provide a polyethylene powder coating compsn. excellent in powder characteristics, by incorporating a particular ethylene/α-olefin copolymer powder with a polyethylene or ethylene/α-olefin copolymer powder.

CONSTITUTION: A compsn. which comprises 10W70pts.wt. ethylene/α-olefin copolymer powder whose bulk density is 0.25W0.55g/cc, angle of repose is 25W45°, particle size is 500μ or below and average particle size is 70W250μ, and shape is sphere, oval, or similar forms free from well-defined sides, edges, strings, or whiskers, and which is prepd. by suspension polymn. or gas phase polymn., and 90W30pts.wt. powder comprising a polyethylene or ethylene/α-olefin copolymer homogenized by melting and pulverized into 500μ or below.