The tensile strength (TS) that provides a surface excellent in appearance characteristics, and high-strength hot-dip galvanized steel sheet and a method of manufacturing a high strength is at least 780 ㎫, bending workability, endothelium.
C: more than 0.05%, 0.15% or less, Si: containing 2.2% or more and not more than 3.5%, and, Nb:: 0.01% to 1.00%, Mn 0.01% to 0.10% or less, Ti: 0.01% to below 0.10% contains at least one member selected. In the 1/2 position in the plate thickness direction of the steel sheet, a ferrite-phase area ratio of 80% or less than 5%, the area ratio of more than 0% to 25% by maten Xi-like and the area ratio of 70% or less than 20% has a bainite phase, and the hardness of 5 ㎛ position in the thickness direction from the surface layer of the steel sheet 80% or less of the hardness of the 1/2 position in the plate thickness direction, and, in 15 ㎛ position in the thickness direction from the surface layer of the steel sheet hardness is less than 90% of the hardness of the 1/2 position in the plate thickness direction.