A high-strength galvanized steel sheet comprising: a cold-rolled steel sheet having a composition containing, by mass%, C: 0.06% or more and 0.09% or less, Si: 0.30% or less, Mn: 1.7% or more and 2.3% or less, P: 0.001% or more and 0.020% or less, S: 0.010% or less, Mo: 0.05% or more and 0.30% or less, N: 0.005% or less, and Al: 0.01% or more and 0.10% or less, the remainder being Fe and inevitable impurities, the cold-rolled steel sheet having a microstructure having a martensite area ratio of 7% to less than 25% and a ferrite area ratio of 50% or more, the cold-rolled steel sheet including a base metal surface portion in which the amount of internal oxides per single side is 0.05 g/m 2 or less; an intermetallic compound, formed on the cold-rolled steel sheet, containing Al of 0.03 g/m 2 or more and 0.12 g/m 2 or less and Fe 2 Al 5 with an average grain size of less than 0.7 μm; and a galvanizing layer formed on the intermetallic compound, the galvanizing layer containing 0.15% ≤ Al% ≤ 0.30% (Al% represents the content (mass percent) of Al in the galvanizing layer), the galvanizing layer having a surface roughness Ra of 0.8 μm or more and 1.6 μm or less, the galvanizing layer having a glossiness (G value) of 750 or more and 850 or less, wherein in the galvanizing layer, the zinc basal plane orientation ratio Zn / defined by the following equation is 30% or more and 60% or less: [Math. 1] Zn 002 / 004 = Zn crystal orientation of 002 plane × 100 / Zn crystal orientation of 004 plane Zn crystal orientation of xyz plane = I xyz / ∑ I xyz I std xyz / ∑ I std xyz × 100 (where I (xyz) is the intensity of Zn in a (xyz) plane of a sample measured using an X-ray and I std(xyz) is the intensity of Zn in a (xyz) plane of a standard sample (pure Zn powder) measured using an X-ray). a cold-rolled steel sheet having a composition containing, by mass%, C: 0.06% or more and 0.09% or less, Si: 0.30% or less, Mn: 1.7% or more and 2.3% or less, P: 0.001% or more and 0.020% or less, S: 0.010% or less, Mo: 0.05% or more and 0.30% or less, N: 0.005% or less, and Al: 0.01% or more and 0.10% or less, the remainder being Fe and inevitable impurities, the cold-rolled steel sheet having a microstructure having a martensite area ratio of 7% to less than 25% and a ferrite area ratio of 50% or more, the cold-rolled steel sheet including a base metal surface portion in which the amount of internal oxides per single side is 0.05 g/m 2 or less; an intermetallic compound, formed on the cold-rolled steel sheet, containing Al of 0.03 g/m 2 or more and 0.12 g/m 2 or less and Fe 2 Al 5 with an average grain size of less than 0.7 μm; and a galvanizing layer formed on the intermetallic compound, the galvanizing layer containing 0.15% ≤ Al% ≤ 0.30% (Al% represents the content (mass percent) of Al in the galvanizing layer), the galvanizing layer having a surface roughness Ra of 0.8 μm or more and 1.6 μm or less, the galvanizing layer having a glossiness (G value) of 750 or more and 850 or less, wherein in the galvanizing layer, the zinc basal plane orientation ratio Zn / defined by the following equation is 30% or more and 60% or less: [Math. 1] Zn 002 / 004 = Zn crystal orientation of 002 plane × 100 / Zn crystal orientation of 004 plane Zn crystal orientation of xyz plane = I xyz / ∑ I xyz I std xyz / ∑ I std xyz × 100 (where I (xyz) is the intensity of Zn in a (xyz) plane of a sample measured using an X-ray and I std(xyz) is the intensity of Zn in a (xyz) plane of a standard sample (pure Zn powder) measured using an X-ray).