PURPOSE: To enable the conveyed work itself sting down by a crane and display information serviceable to a crane operation to be easily sighted without making an operator largely shift his gaze as well as largely adjust a focal distance of his eyes, in a crane control.

CONSTITUTION: In a crane control provided with a crane operating control member performing its work to a conveyed work W as eying the work W ahead, it is provided with a monitor camera E photographing a conveyed work W and the surrounding scene from a position other than that where this crane control is set up, an optical information display means D with a display surface displayed with an image taken by this monitor camera E and an optical member A projecting an information display light L projected out of the display surface in the specified direction, and this optical member A is set up so as to form a virtual image of optical information in front and in some distance of an operator P doing a crane operation.