PURPOSE: To execute the automatic slinging work by providing a single hoist driving system as a means of the automatic operation of a ladle crane.

CONSTITUTION: A lifting beam body 3 is provided with a main hoisting sheeve 1 to lift/lower the whole hoisting accessory, an auxiliary hook hoisting drum 14, an auxiliary hoisting sheeve 10, and a hydraulic cylinder 13 for inclining the auxiliary hook, and suspended from a trolley of a crane by means of the main hoisting rope 1. A ladle 5 is provided with trunnions 6 on each side, and these trunnions 6 are hooked by two main hooks 4 on the hoisting accessory side. Thus, the auxiliary hoisting device on the trolley can be dispensed with, and the whole crane can be designed to be compact, resulting in the improvement of the crane traversing and the economical improvement. The automatic slinging work which has been the obstruction in the automation of the conventional ladle crane can be realized, and slinging workers on the ground can be dispensed with, leading to the safe crane operation.