A rope connecting support for use in a crane vehicle when a hoist rope is stretched, the rope connecting support used to draw a front end side of the hoist rope to a front end of a boom along an upper surface of the boom by connecting the front end of the hoist rope wound around a winch on a swivel base of the crane vehicle to one end of an auxiliary rope used for pulling the hoist rope and drawing the other end of the auxiliary rope down via the front end of the boom, characterized in that the rope connecting support comprises: a base having a predetermined dimension; a hoist rope locking part configured to be able to removably lock a rod part provided on the front end of the hoist rope onto an upper surface of the base in one end side of the base; and an auxiliary rope connecting part configured to be able to connect one end of an auxiliary rope to the upper surface of the base in the other side of the base, wherein: the base includes an uphill part formed by upwardly inclining an lower surface of the one end side of the base in which the auxiliary rope connecting part is provided; the auxiliary rope connecting part includes an upright plate used to pin the one end of the auxiliary rope; and in a state in which the one end of the auxiliary rope is pinned to the upright plate and the rod part provided on the front end of the hoist rope is locked onto the hoist rope locking part, the rod part is positioned on right and left sides thereof by the hoist rope locking part, and also positioned with respect to a longitudinal direction of the rod part by the hoist rope locking part and the one end of the auxiliary rope that is pinned. a base having a predetermined dimension; a hoist rope locking part configured to be able to removably lock a rod part provided on the front end of the hoist rope onto an upper surface of the base in one end side of the base; and an auxiliary rope connecting part configured to be able to connect one end of an auxiliary rope to the upper surface of the base in the other side of the base, wherein: the base includes an uphill part formed by upwardly inclining an lower surface of the one end side of the base in which the auxiliary rope connecting part is provided; the auxiliary rope connecting part includes an upright plate used to pin the one end of the auxiliary rope; and in a state in which the one end of the auxiliary rope is pinned to the upright plate and the rod part provided on the front end of the hoist rope is locked onto the hoist rope locking part, the rod part is positioned on right and left sides thereof by the hoist rope locking part, and also positioned with respect to a longitudinal direction of the rod part by the hoist rope locking part and the one end of the auxiliary rope that is pinned. the base includes an uphill part formed by upwardly inclining an lower surface of the one end side of the base in which the auxiliary rope connecting part is provided; the auxiliary rope connecting part includes an upright plate used to pin the one end of the auxiliary rope; and in a state in which the one end of the auxiliary rope is pinned to the upright plate and the rod part provided on the front end of the hoist rope is locked onto the hoist rope locking part, the rod part is positioned on right and left sides thereof by the hoist rope locking part, and also positioned with respect to a longitudinal direction of the rod part by the hoist rope locking part and the one end of the auxiliary rope that is pinned.