A high-strength hot-dip galvanized steel sheet excellent in bake hardenability, comprising: a base steel sheet containing, in mass%, C: 0.075 to 0.400%, Si: 0.01 to 2.00%, Mn: 0.80 to 3.50%, P: 0.0001 to 0.100%, S: 0.0001 to 0.0100%, Al: 0.001 to 2.00%, N: 0.0001 to 0.0100%, O: 0.0001 to 0.0100% each, and optionally further containing, in mass%, one kind or two kinds or more from among Ti: 0.001 to 0.150%, Nb: 0.001 to 0.100%, V: 0.001 to 0.300%, Mo: 0.01 to 2.00%, W: 0.01 to 2.00%, Cr: 0.01 to 2.00%, Ni: 0.01 to 2.00%, Cu: 0.01 to 2.00%, B: 0.0001 to 0.0100%, and Ca, Ce, Mg, Zr, La, REM for 0.0001 to 0.0100% as a total, with the balance made up of Fe and inevitable impurities, wherein a structure of the base steel sheet contains, in volume fraction, 3% or more of a retained austenite phase, 50% or less of a ferrite phase, and 40% or more of a hard phase, at a range from 1/8 thickness centered around a 1/4 sheet thickness from a surface to 3/8 thickness centered around the 1/4 sheet thickness from the surface at the base steel sheet, an average dislocation density is 1 × 10 13 /m 2 or more, a solid-solution C amount contained in the retained austenite phase is in mass% 0.70 to 1.00%, an X-ray random intensity ratio of FCC iron in a texture of the retained austenite phase is 3.0 or less, wherein the X-ray random intensity ratio of the FCC iron is found from a crystal orientation distribution function representing a three-dimensional texture calculated based on plural pole figures from among,, pole figures measured by the X-ray diffraction, a ratio between a grain diameter relative to a rolling direction and a grain diameter relative to a sheet width direction of the retained austenite phase is 0.75 to 1.33, further, a hot-dip galvanized layer is formed at the surface of the base steel sheet and the sheet thickness becomes 0.6 to 5.0 mm. a base steel sheet containing, in mass%, C: 0.075 to 0.400%, Si: 0.01 to 2.00%, Mn: 0.80 to 3.50%, P: 0.0001 to 0.100%, S: 0.0001 to 0.0100%, Al: 0.001 to 2.00%, N: 0.0001 to 0.0100%, O: 0.0001 to 0.0100% each, and optionally further containing, in mass%, one kind or two kinds or more from among Ti: 0.001 to 0.150%, Nb: 0.001 to 0.100%, V: 0.001 to 0.300%, Mo: 0.01 to 2.00%, W: 0.01 to 2.00%, Cr: 0.01 to 2.00%, Ni: 0.01 to 2.00%, Cu: 0.01 to 2.00%, B: 0.0001 to 0.0100%, and Ca, Ce, Mg, Zr, La, REM for 0.0001 to 0.0100% as a total, with the balance made up of Fe and inevitable impurities, wherein a structure of the base steel sheet contains, in volume fraction, 3% or more of a retained austenite phase, 50% or less of a ferrite phase, and 40% or more of a hard phase, at a range from 1/8 thickness centered around a 1/4 sheet thickness from a surface to 3/8 thickness centered around the 1/4 sheet thickness from the surface at the base steel sheet, an average dislocation density is 1 × 10 13 /m 2 or more, a solid-solution C amount contained in the retained austenite phase is in mass% 0.70 to 1.00%, an X-ray random intensity ratio of FCC iron in a texture of the retained austenite phase is 3.0 or less, wherein the X-ray random intensity ratio of the FCC iron is found from a crystal orientation distribution function representing a three-dimensional texture calculated based on plural pole figures from among,, pole figures measured by the X-ray diffraction, a ratio between a grain diameter relative to a rolling direction and a grain diameter relative to a sheet width direction of the retained austenite phase is 0.75 to 1.33, further, a hot-dip galvanized layer is formed at the surface of the base steel sheet and the sheet thickness becomes 0.6 to 5.0 mm.