WIRING MEMBER WITH FIXING MEMBER AND FIXING STRUCTURE OF WIRING MEMBER

A wiring member with a fixing member includes a flat wiring member, and a fixing member. The fixing member includes an attachment part and a fixing part. The attachment part includes an annular part and an annular shape maintaining part. The annular part is capable of changing a state between an annular state and a non-annular state. The annular shape maintaining part is provided at one end portion of the annular part, fastens another end portion of the annular part, and maintains the annular part in the annular state. In a state in which the annular part is in the annular state and the attachment part is attached to the flat wiring member, a part of the flat wiring member to which the attachment part is attached is in a spread state.