Provided is a stretchable supercapacitor and a method of manufacturing the same. The stretchable supercapacitor includes a separator between first and second current collectors. The first and second current collectors each including an active material. The second current collector is on the first current collector. The separator includes an electrolyte. Each of the separator, the first current collector and the second current collector includes an elastic polymer layer. The first and second current collectors may each have a 3-dimensional nano-pore structure. The stretchable supercapacitor may further include a first electrode in contact with the first current collector and a second electrode in contact with the second current collector. The elastic polymer layers may include at least one of styrene-b-butadiene-b-styrene (SBS), polyurethane, polyurethane acrylate, acrylate polymer, acrylate terpolymer, and silicone-based polymer.