A chain-shaped splicing toy is attached to a ball so that a plurality of balls can be spliced with each other. The chain-shaped splicing toy includes a first chain assembly. The first chain assembly has two first coupling portions, a first ring, two first buckling portions, and a plurality of first chain connecting portions. Wherein, when the first chain assembly is attached to the ball, the first coupling portion at one end is coupled to the first ring at the other end. The first buckling portions are buckled to the first coupling portion that is not located at one end of another first chain assembly attached to the other ball so that the balls can be spliced with each other in different shapes and models.