A photoelectric composite connector includes a first fitting member including a first holding member holding at least one first optical fiber, and at least one first electric connecting portion, and a second fitting member including a second holding member holding at least one second optical fiber, and at least one second electric connecting portion. The first and second fitting members are constituted as to fit into and onto each other so that the first and second optical fibers are optically connected and the first and second electric connecting portions are electrically connected. The first and second fitting members includes a protecting section to prevent foreign materials generated during fitting of the first and second fitting members from entering into at least the first and second holding members.