A vitreous enamel composition comprising 1 part by weight of a vitreous enamel solid component composed of (1) 90-99.9 wt. % of glass powder consisting predominantly of 40 to 80 wt. % of SiO 2, 1-25 wt. % of at least one of B 2 O 3 and CaO, and 1-20 wt. % of R 2 O in which R is K, Na or Li, and (2) 0.1-10 wt. % of palladium powder, and 1-20 parts by weight of an organic vehicle.