The invention discloses a material carrying mechanical arm capable of rotating and displacing. The mechanical arm comprises a base, a lifting stand column, a transverse moving mechanism, a mechanicalarm, a connecting piece and a material taking mechanical claw, wherein the lifting stand column is fixed on the base through a
rotating disc, the transverse moving mechanism is arranged on the liftingstand column, the lifting stand column comprises a lifting air cylinder and a supporting stand column, and the bottom of the lifting air cylinder is arranged on the
rotating disc; and the mechanicalarm comprises a first mechanical arm, a second mechanical arm and a third mechanical arm, wherein the third mechanical arm is connected with the material taking mechanical claw through the connectingpiece, a first
hydraulic cylinder is connected between the first mechanical arm and the second mechanical arm, a second
hydraulic cylinder is arranged between the second mechanical arm and the third mechanical arm, and a third
hydraulic cylinder is arranged between the third mechanical arm and the material taking mechanical claw. Through the cooperation and use of the lifting stand column, the transverse moving mechanism and the
rotating disc, all-directional work of the material taking mechanical claw can be controlled, so that the
automation degree in the production process is improved, manual operation of people in a
dangerous environment is replaced, the working condition is improved, and the working efficiency is greatly improved.