Method and device for determining height of lifting hook, engineering machinery and processor

The embodiment of the invention provides a method and device for determining the height of a lifting hook, engineering machinery and a processor. The method is applied to the engineering machinery comprising the lifting hook, the engineering machinery comprises a winding drum, a pulley and a suspension arm, the suspension arm comprises an arm head and an arm tail, and the method comprises the steps that pulley parameters of the pulley, the vertical height between the arm head and the ground and the actual load of the lifting hook are obtained when the engineering machinery is in a starting state and the suspension arm is in a stretching state; the pulley parameters comprise pulley multiplying power; according to the actual load and the pulley multiplying power, the first-time contact position of the steel wire rope and the suspension arm after the steel wire rope is wound out through the winding drum and the winding rope-out length of the steel wire rope between the winding drum and the lifting hook are deter