Problem to be solved: to provide a conductive laminate and its manufacturing method capable of reducing or suppressing the manufacturing cost and environmental load in the formation of the conductive plating layer, and the water-soluble ink containing the reducing agent.The conductive laminate of one embodiment of the present disclosure comprises a substrate having a hydroxyl group, a crosslinking reaction product of a crosslinking agent, a reducing agent containing layer comprising a reducing agent, a plating catalyst disposed on the reducing agent containing layer A conductive plating layer disposed to cover the plating catalyst is provided.Diagram
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