To provide a slide operating device in which crosstalks among lead wires are reduced.

In a main case 10, a movement body 70 is arranged movable by sliding along an upper-side guide bar 78 and a lower-side guide bar 79, wherein the movement action of the movement body 70 is detected by a sensor section 73. Flat cables 30, consisting of a first extension section 32, which includes a signal line 93 and a second extension section 33, which includes a ground line 91, are branched at a cable base section 31 and are arranged extending toward mutually opposite directions. The first extension section 32 is arranged extending in the right direction, curves at a halfway position to the backside to be folded toward the left, and is led from a first cable insertion hole 24 to the outside. The second extension section 33 is once folded toward the left at the right of the cable base section 31, then curves at a halfway position to the backside to be folded toward the right, and is led from the second cable insertion hole 27 to the outside.