Swing toy with ball moving from lower position to higher position along bifurcate rails

The utility model relates to a swing toy with a ball moving from a lower position to a higher position along bifurcate rails. The swing toy comprises a bottom plate, wherein two ends of the bottom plate are connected with bifurcate structures inclined to the ground surface respectively; each bifurcate structure comprises two inclined rods arranged at an interval and inclined to the ground surface, and a transversal rod connected with the two inclined rods; the transversal rods of the two bifurcate structure are opposite to each other; a gap is formed between the two transversal rods; three rolling rails are formed by the inclined rods of the bifurcate structures; a ball is arranged in one of the two furcation structures, and is provided with a hollow structure; and a laterality block is fixed on an inner wall of the ball. The ball of the swing toy can roll along the three rolling rails back and forth by the action of the laterality block in the ball, and stop at the third rolling rail due to friction of the t