The invention relates to an artificial hand. The artificial hand comprises a palm main body, a driving unit, finger units and a thumb unit, wherein the driving unit is arranged in the palm main body, and comprises a reducing motor, a transmission mechanism and a driver board; the finger units and the thumb unit realize finger flexion and extension through link structures and a hinge connection mode; the thumb unit realizes adduction and abduction of a thumb through a worm and worm gear meshing transmission mechanism. According to the invention, flexion and extension of three fingers can be realized only through one motor, so that compared with an artificial hand with multiple motors, the artificial hand is lighter. Moreover, as the link structures which are relatively low in machining cost are mainly used for movement of the fingers, the cost of the artificial hand is lowered, and the artificial hand better meets the requirements of consumers. In addition, as the driving parts are all arranged in the cavity of the palm, movement of the wrist is not influenced. The artificial hand provided by the invention can perform various frequently used movements in daily life, so that the practicability is enhanced.