To provide a light alloy wheel having high reliability and productivity capable of suppressing leakage caused by defects such as pin holes.

In the light alloy wheel having a rim part and a disk part, at least a part of the rim part has a plastic flow structure of the thickness in the wheel radial direction being ≥0.02 mm on the alloy surface. In addition, in order to obtain the structure, a carbide-based cutting tool with the radius of curvature at a tip of the tool being ≥3 mm is used when cutting the cast light alloy wheel stock.