To provide a multi-core coaxial cable for reducing component members and improving the shielding effect, and a method of manufacturing the multi-core coaxial cable.

The multi-core coaxial cable 100 is equipped with a plurality of coaxial cables, a first film 120, and a first connecting member 130. The coaxial cable includes the center conductor 111, an insulator 112, the outer conductor 113 and the outer jacket 114, and at one end part R, the center conductor 111 and the outer conductor 113 are exposed. The first film 120 is disposed at least at one end part R of the plurality of the coaxial cables, and includes a first insulating layer 121 and a conductive layer 122 formed on the first insulating layer 121. The first connecting member 130 is an insulating member for connecting the first film 120 and the exposed center conductor 111 to each other. The exposed outer conductor 113 is electrically connected to the conductive layer 122.