Advanced high strength zinc plated steel sheet having excellent surface quality and electrical resistance spot weldability

A galvanized steel sheet comprising:

• a base steel sheet;
• and
• a zinc-based plating layer formed on a surface of the base steel sheet,
• wherein the base steel sheet includes a surface layer portion and an internal portion,
• wherein a ratio (a/b) of a Vickers hardness of the surface layer portion (a) to a Vickers hardness of the internal portion (b) of the base steel sheet is less than 0.95,
• wherein during spot welding, a length of a B-type LME crack generated at a shoulder portion of the spot weld is 100 μm or less and a C-type LME crack is not observed,
• wherein the galvanized steel sheet has a powdering property in which a length of the plating layer peeled off from the tape is 10 mm or less, and
• wherein a peeling does not occur in a sealer bending test.