The invention discloses a control system of a bionic mechanical arm. The control system is arranged on the mechanical arm, the mechanical arm comprises a support, a mechanical arm body, a mechanical palm and mechanical fingers, wherein the mechanical arm body is rotationally connected with the support, the mechanical palm is rotationally connected with the mechanical arm body and the mechanical fingers are arranged on the mechanical palm; the control system comprises a camera, a digital processing module, a mechanical arm body control module and a mechanical palm control module, the digital processing module is connected with the camera, the mechanical arm body control module is in communication connection with the digital processing module, and the mechanical palm control module is in communication connection with the mechanical arm body control module; and the mechanical arm body control module is arranged on the mechanical arm body, and the mechanical palm control module is arrangedon the mechanical palm. According to the control system of the bionic mechanical arm, the bionic mechanical arm is combined with the camera, and a RGBD image collected by the camera shooting is processed at the digital processing module end, so that the type of an object and the three-dimensional position information can be accurately recognized.