Galvanized steel sheet and production process thereof

The invention provides a galvanized steel sheet and a production process of the galvanized steel sheet. Chemical components of raw materials of the galvanized steel sheet comprise, by mass, 0.04 percent to 0.06 percent of C, 0.010 percent to 0.030 percent of Si, 0.15 percent to 0.35 percent of Mn, P smaller than or equal to 0.015 percent, S smaller than or equal to 0.015 percent, Als smaller than or equal to 0.055 percent, and the balance iron and inevitable impurities. The galvanized steel sheet produced through the production process improves the bonding strength between a Zinc layer and a steel sheet, adhesive force reverse ballistic work of the Zinc layer can reach 9 J, and therefore the galvanized steel sheet can be suitable for various high-end color coating. Meanwhile, the production process of the galvanized steel sheet is controlled, the cost is reduced, the competitiveness of the sheet is improved, and the steel sheet has the high practicability.