This utility model discloses a mold changing trolley, including a frame; two sets of rolling elements, each set located on one side of the frame, allowing the mold to roll along the length of the frame; a support rod between the two rolling elements; two sets of limiting elements, each set located at one end of the rolling elements, with the mold positioned between the two rolling elements; and a positioning pin, located on the frame and inserted into a positioning hole at the bottom of the mold. This utility model, by incorporating rolling elements, limiting elements, and a positioning pin, facilitates the placement and positioning of the mold. The changing trolley can be used in conjunction with forklifts, overhead cranes, or manually, providing a tool for the temporary placement and transportation of molds. The mold has the advantages of simple structure and high practicality.