A wiring module comprising: a detection wire that has a core wire and an insulating coating covering the core wire and that detects a state of a power storage element, a bus bar, and a wire connection portion formed on the end portion of the bus bar and to which the end portion of the detection wire is connected. The wire connection portion includes a core wire connection portion to which the core wire of the detection wire is connected. The core wire connection portion includes a first core wire connection portion for drawing out the detection wire in one direction and a second core wire connection portion for drawing out the detection wire in another direction that is different from the one direction.