Provided is an electroconductive pressure-sensitive adhesive tape which can exhibit stable electrical conductivity even when used over a long duration and/or used under severe environmental conditions. The electroconductive pressure-sensitive adhesive tape has a metallic foil and, on one side thereof, a pressure-sensitive adhesive layer, in which the electroconductive pressure-sensitive adhesive tape has a maximum resistance in the first cycle of 1 © or less and has a maximum resistance in the 200th cycle being 5 times or less the maximum resistance in the first cycle, as measured in a thermo-cycle test.