To provide a structure of connection of a conduit for communication to a hand hole, wherein a maximum number of sheathing tubes can be inserted into a through hole of a certain area formed in a hand hole and the sheathing tubes can be increased in number by relatively a simple work.

A duct sleeve for main body tube into which a main body tube can be inserted so that the body tube can be slid and which has a tube receiving hole, whose bottom is a stepped face is fixed in the hand hole. A plurality of duct sleeves for sheathing tubes into which respective sheathing tubes are inserted so that the sheathing tubes can be slid are bundled, and one end of the bundle is bound. The tube end portion of the bundle of the duct sleeves for sheathing tubes is inserted into the duct sleeve for body tube. The body tube is inserted into the duct sleeve for body tube so that the body tube can be slid. Individual sheathing tubes are inserted into the individual duct sleeves for sheathing tubes so that the sheathing tubes can be slid. The binder for biding the bundle of the duct sleeves for sheathing tubes is disposed between the tube end face of the body tube and the stepped face at the bottom of the duct sleeve for body tube so that the binder can be moved therebetween.