Dexterous robot hand is an important integrated product of bionics and robotics. In modern life, it has gradually become the focus and hot spot. This paper introduces various types of famous dexterous robot hand and its development. The intelligent computation of robot hand also improves to adapt the more complicated using environment. The paper focuses on the study of the theoretical calculation in grasping control. The theoretical characteristics of intelligent computation are analyzed. In the end, the conclusion of grasping control is summarized.