To provide a support structure which can effectively prevent a wire material from separating from a support member by using simple constitution.

The support structure for a wire material 105 to a support member 1 is characterized by; forming a slit 2 which is open to an edge of the support member 1 in the support member 1, providing a large-diameter part 107 which is wider than the slit 2 to the wire material 105, inserting the wire material 105 into the slit 2 to engage the large-diameter part 107, and forming a 2nd path (curving part) which extends in a direction different from the extension direction of a 1st path (close to opening) 3 leading to the opening part to the edge of the support member 1 in the slit 2 beyond the 1st path 3.