In the field of construction machinery manufacturing, the development of robotic arm (RA) is very rapid and widely used. Many intelligent engineering RAs can improve industrial production processes and improve production efficiency under the action of IoT sensors. This paper constructs an engineering manipulator control system based on the combination of wireless communication network and Internet of Things technology, which is used to control the operation of the manipulator, adjust the grasping posture of the manipulator at the end, and drive the rotation and operation of the manipulator in the industrial production process. However, the traditional attitude sensing method is inefficient. Therefore, this paper constructs a model of the attitude sensing method of the engineering manipulator based on the Euclidean Distance Matrix (EDM) algorithm. The accuracy of the robot arm attitude perception (AP) is higher.