The invention relates to an artificial wrist joint, in particular to a parallel-connection artificial wrist joint capable of achieving circumduction motion. The artificial wrist joint comprises a base, a movable platform, a constrained branch chain, a first driving branch chain and a second driving branch chain; the constrained branch chain comprises a middle connection rod and a middle connectionpiece, the first driving branch chain comprises a first upper connection rod, a first push-rod-type linear driver and a first lower connection rod, and the second driving branch chain comprises a second upper connection rod, a second push-rod-type linear driver and a second lower connection rod. The flexion, extension, internal rotation, external rotation and circumduction motion of the artificial wrist joint can be achieved, and the artificial wrist joint has the advantages of high rigidity, bearing capacity, precision and functionality, excellent bionic properties and the like.