A dual phase stainless clad steel having a dual phase stainless steel layer disposed on one surface or both surfaces of a base material steel plate, in which a component composition of a cladding material of the dual phase stainless clad steel contains, in terms of mass%, C: 0.030% or less, Si: 0.20% or more and 1.00% or less, Mn: 1.50% or less, P: 0.0400% or less, S: 0.0100% or less, Ni: 4.50 to 7.00%, Cr: 21.0 to 24.0%, Mo: 2.5 to 3.5%, N: 0.08 to 0.20%, optionally, in terms of mass%, at least one selected from Cu: 0.01 to 1.50%, W: 0.01 to 1.50%, Co: 0.01 to 1.50%, Ti: 0.01 to 0.25%, Nb: 0.01 to 0.25%, Sn: 0.2% or less, Sb: 0.2% or less, Zr: 0.2% or less, Mg: 0.02% or less, Ca: 0.02% or less, and REM: 0.2% or less, and the balance being Fe and incidental impurities, wherein a PI defined by formula below is 34.0 to 38.0, and, in the cladding material, an alpha phase and a gamma phase each have a phase fraction of 30 to 70%, and a sum of phase fractions of a sigma phase and carbides is 1.0% or less, PI = Cr + 3.3 Mo + 16 N and wherein a component composition of a base material of the dual phase stainless clad steel contains, in terms of mass%, C: 0.03 to 0.10%, Si: 1.00% or less, Mn: 0.50 to 2.00%, P: 0.05% or less, S: 0.05% or less, optionally, , in terms of mass%, at least one selected from Cu: 0.01 to 0.50%, Cr: 0.01 to 0.50%, Ni:0.01 to 1.00%, Mo: 0.01 to 0.50%, Al: 0.005 to 0.300%, Nb: 0.005 to 0.300%, V: 0.001 to 0.400%, Ti: 0.005 to 0.100%, Ca: 0.0003 to 0.0050%, B: 0.0003 to 0.0030%, and REM: 0.0003 to 0.0100%, and the balance being Fe and incidental impurities. 0.030% or less, Si: 0.20% or more and 1.00% or less, Mn: 1.50% or less, P: 0.0400% or less, S: 0.0100% or less, Ni: 4.50 to 7.00%, Cr: 21.0 to 24.0%, Mo: 2.5 to 3.5%, N: 0.08 to 0.20%, optionally, in terms of mass%, at least one selected from Cu: 0.01 to 1.50%, W: 0.01 to 1.50%, Co: 0.01 to 1.50%, Ti: 0.01 to 0.25%, Nb: 0.01 to 0.25%, Sn: 0.2% or less, Sb: 0.2% or less, Zr: 0.2% or less, Mg: 0.02% or less, Ca: 0.02% or less, and REM: 0.2% or less, and the balance being Fe and incidental impurities, wherein a PI defined by formula below is 34.0 to 38.0, and, in the cladding material, an alpha phase and a gamma phase each have a phase fraction of 30 to 70%, and a sum of phase fractions of a sigma phase and carbides is 1.0% or less, PI = Cr + 3.3 Mo + 16 N and wherein a component composition of a base material of the dual phase stainless clad steel contains, in terms of mass%, C: 0.03 to 0.10%, Si: 1.00% or less, Mn: 0.50 to 2.00%, P: 0.05% or less, S: 0.05% or less, optionally, , in terms of mass%, at least one selected from Cu: 0.01 to 0.50%, Cr: 0.01 to 0.50%, Ni:0.01 to 1.00%, Mo: 0.01 to 0.50%, Al: 0.005 to 0.300%, Nb: 0.005 to 0.300%, V: 0.001 to 0.400%, Ti: 0.005 to 0.100%, Ca: 0.0003 to 0.0050%, B: 0.0003 to 0.0030%, and REM: 0.0003 to 0.0100%, and the balance being Fe and incidental impurities. 0.02% or less, Ca: 0.02% or less, and REM: 0.2% or less, and the balance being Fe and incidental impurities, wherein a PI defined by formula below is 34.0 to 38.0, and, in the cladding material, an alpha phase and a gamma phase each have a phase fraction of 30 to 70%, and a sum of phase fractions of a sigma phase and carbides is 1.0% or less, PI = Cr + 3.3 Mo + 16 N and wherein a component composition of a base material of the dual phase stainless clad steel contains, in terms of mass%, C: 0.03 to 0.10%, Si: 1.00% or less, Mn: 0.50 to 2.00%, P: 0.05% or less, S: 0.05% or less, optionally, , in terms of mass%, at least one selected from Cu: 0.01 to 0.50%, Cr: 0.01 to 0.50%, Ni:0.01 to 1.00%, Mo: 0.01 to 0.50%, Al: 0.005 to 0.300%, Nb: 0.005 to 0.300%, V: 0.001 to 0.400%, Ti: 0.005 to 0.100%, Ca: 0.0003 to 0.0050%, B: 0.0003 to 0.0030%, and REM: 0.0003 to 0.0100%, and the balance being Fe and incidental impurities. <EOS>