Due to the dynamic complexity of robot manipulators, many traditional designers of robot manipulators often evade explicitly handling flexibility issues. The motion control problem of these systems is based on the rigid model of the system, and the flexibility problem of the system is considered negligible. To address these issues, adaptive and robust control techniques provide special solutions to cope with uncertainties in their dynamics. The advantages of these techniques are rapidly developing, ensuring global stability and tracking results for controlled systems, and suitable for a relatively large class of nonlinear systems.