A high-strength plated steel sheet having a hot-dip galvanized layer or an alloyed hot-dip galvanized layer on a surface of a base steel sheet, wherein (i) the base steel sheet contains, by mass %, C: 0.05 to 0.25%, Si: 0.5 to 2.5%, Mn: 2.0 to 4%, P: greater than 0% and less than or equal to 0.1 %, S: greater than 0% and less than or equal to 0.05%, Al: 0.01 to 0.1%, and N: greater than 0% and less than or equal to 0.01 %, optionally, at least a material selected from the group consisting of Cr: greater than 0% and less than or equal to 1%, Mo: greater than 0% and less than or equal to 1%, B: greater than 0% and less than or equal to 0.01%, Ti: greater than 0% and less than or equal to 0.2%, Nb: greater than 0% and less than or equal to 0.2%, V: greater than 0% and less than or equal to 0.2%, Cu: greater than 0% and less than or equal to 1%, and Ni: greater than 0% and less than or equal to 1%, a balance of the base steel sheet consists of an iron and inevitable impurities, (ii) the base steel sheet includes, in order from a base steel sheet side of an interface between the base steel sheet and the plated layer, a soft layer having a Vickers hardness under a load of 3 gf of 90% or less of a Vickers hardness under a load of 3 gf of a t/4 portion of the base steel sheet, where t is a thickness of the base steel sheet, and a hard layer formed on the side of the soft layer facing the inner side of the base steel sheet and having a structure containing martensite and bainite as main components, wherein the soft layer has an average depth D of 20 μm or more and includes an internal oxide layer containing at least an oxide selected from the group consisting of Si and Mn, the internal oxide layer has an average depth d of 4 μm or more and less than D and is formed in a portion directly in contact with the interface between the base steel sheet and the plated layer, the average depth d of the internal oxide layer and the average depth D of the soft layer satisfy a relationship of D > 2d, and the plated steel sheet has a tensile strength of 980 MPa or more. (i) the base steel sheet contains, by mass %, C: 0.05 to 0.25%, Si: 0.5 to 2.5%, Mn: 2.0 to 4%, P: greater than 0% and less than or equal to 0.1 %, S: greater than 0% and less than or equal to 0.05%, Al: 0.01 to 0.1%, and N: greater than 0% and less than or equal to 0.01 %, optionally, at least a material selected from the group consisting of Cr: greater than 0% and less than or equal to 1%, Mo: greater than 0% and less than or equal to 1%, B: greater than 0% and less than or equal to 0.01%, Ti: greater than 0% and less than or equal to 0.2%, Nb: greater than 0% and less than or equal to 0.2%, V: greater than 0% and less than or equal to 0.2%, Cu: greater than 0% and less than or equal to 1%, and Ni: greater than 0% and less than or equal to 1%, a balance of the base steel sheet consists of an iron and inevitable impurities, C: 0.05 to 0.25%, Si: 0.5 to 2.5%, Mn: 2.0 to 4%, P: greater than 0% and less than or equal to 0.1 %, S: greater than 0% and less than or equal to 0.05%, Al: 0.01 to 0.1%, and N: greater than 0% and less than or equal to 0.01 %, optionally, at least a material selected from the group consisting of Cr: greater than 0% and less than or equal to 1%, Mo: greater than 0% and less than or equal to 1%, B: greater than 0% and less than or equal to 0.01%, Ti: greater than 0% and less than or equal to 0.2%, Nb: greater than 0% and less than or equal to 0.2%, V: greater than 0% and less than or equal to 0.2%, Cu: greater than 0% and less than or equal to 1%, and Ni: greater than 0% and less than or equal to 1%, (ii) the base steel sheet includes, in order from a base steel sheet side of an interface between the base steel sheet and the plated layer, a soft layer having a Vickers hardness under a load of 3 gf of 90% or less of a Vickers hardness under a load of 3 gf of a t/4 portion of the base steel sheet, where t is a thickness of the base steel sheet, and a hard layer formed on the side of the soft layer facing the inner side of the base steel sheet and having a structure containing martensite and bainite as main components, wherein a soft layer having a Vickers hardness under a load of 3 gf of 90% or less of a Vickers hardness under a load of 3 gf of a t/4 portion of the base steel sheet, where t is a thickness of the base steel sheet, and a hard layer formed on the side of the soft layer facing the inner side of the base steel sheet and having a structure containing martensite and bainite as main components, wherein