White ash（Fraxinus chinensis）,Mongolian oak（Quercus mongolica）,Camphor wood（Cinnamomum camphora）,Chinese gugertree（Schima superba） blanks of solid-wood flooring were heat-treated with super-high temperature.The technology was applied in a wood factory in Nanxun,Zhejiang Province based on laboratory experiments.Compared with the common solid wood flooring,moisture adsorption of heat-treated wood decreased by 51.87% and dimensional stability increased by 42.36%.Also,tangential modulus of elasticity and longitudinal compression strength increased by 1.15% and 2.19% respectively,but tangential bending strength reduced substantially.Heat-conduction ability was better than untreated solid-wood flooring used as ground heating flooring.