The utility model relates to a self-centering chuck for face-lifting of a tire, which comprises a chuck, movable claws and a conical head, wherein the conical head is installed inside an inner hole of the chuck, a plurality of movable claws are uniformly distributed on the chuck, the movable claws are installed on the chuck through a connection rod, the lower end of the connection rod is contacted with the conical head, and the conical head is connected with a movable mechanism. The lower end of the connection rod is provided with an idler wheel. The movable mechanism can adopt an air cylinder, an oil cylinder or a helical movable mechanism. The conical head with taper drives the movable claws of the chuck to simultaneously extends out so as to realize the automatic centering of the tire, so that the self-centering chuck is safe and reliable and is convenient to use.