Crane and operating method thereof

A crane and a crane operating method for reducing fatigue of the operator and for reducing the visual distance or the dead angle when the operator directly observes a load. The crane (1) comprises a raising and lowering device for raising and lowering the operator cab (50) in which an operator operates the crane. A position detecting device (60) for detecting the position of the operator cab may be provided. The position detecting device may output a signal for stopping the operator cab when the operator cab reaches a limit position. The raising and lowering device may includes a rack (54) provided along the frame; a pinion (53) which is engaged with the rack and is attached to the operator cab; and a motor (52) for driving the pinion, wherein the motor is attached to the operator cab. Accordingly, the working efficiency can be improved and safety environments for the crane operation can be realized.