A conduction cord for a low frequency treatment device, which, even if a pad is adhered to a target treatment site having a larger curvature, enables the pad to be more reliably adhered to the site in an intimate contact relationship. The cord (40) has connection terminals (42a, 42b, 42c) arranged so that they can be respectively in contact with and separated from electrodes disposed on the pad (30); lead wires (43a, 43b, 43c) respectively connected to the connection terminals (42a, 42b, 42c); and electrically interconnecting a low frequency treatment device body and the pad (30), and a connection section (44) formed from an elastic material and connecting between the connection terminals (42a, 42b, 42c). The connection terminals (42a, 42b, 42c) are arranged independent of each other and form a single connection terminal group when they are interconnected by the connection section (44).