The utility model discloses a toy on crib of combination change form, the on -line screen storage device comprises a base, four arc recesses have been seted up to the bottom symmetry of base, one sideopening of arc recess, the walking wheel is installed to arc recess internal rotation, one side of walking wheel extends to outside the arc recess, the round hole has been seted up on one side innerwall of arc recess, the pivot is installed to the round hole internal rotation, and the pivot extends to outside the round hole, the fixed cover of walking wheel is established outside the pivot is located the one end of arc recess, the through -hole has been seted up on one side inner wall of round hole, slidable mounting has the ejector pin in the through -hole, and the both ends of ejector pinextend to outside the through -hole respectively, the draw -in groove has been seted up in the pivot, the ejector pin is located the one end of round hole and installs at the draw -in groove. The utility model discloses not only can satisfy each age bracket of child to the requirement of toy kind, practice thrift the money of buying the toy for the head of a family moreover, simultaneously child through the change that changes the toy form to the equipment also can develop still intelligence.