There is provided a connecting structure of a fiber conductor wire including: a fiber conductor having a knot; and a terminal having a hole for inserting the fiber conductor, said hole having a receiving portion for receiving the knot, wherein the fiber conductor wire and the terminal are electrically connected to each other by inserting the fiber conductor into the hole and by locking the knot in the receiving portion. There is also provided a connecting method of a fiber conductor wire comprising the steps of forming a not by tying loosely a fiber conductor; inserting the fiber conductor into a hole of a terminal; and pulling the fiber conductor to engage the knot with a receiving portion of the hole and to electrically connect the knot to the receiving portion.