Calcium carbonate (CaCO₃) is abundant in nature, and is also an important material applied in industry as pigment, filler material, etc. It is a challenge to control the desired CaCO₃ properties for industry applications. In this study, three typical morphologies of CaCO₃, calcite, aragonite and vaterite were prepared. The crystallization temperature and addition of acrylic-acrylate-sulfosalt copolymer play a significant effect on the polymorph change of CaCO₃ sediment. Higher temperature promoted the formation of aragonite, while more additives tended to form the vaterite. The x-ray diffraction and scanning electron microscope analysis confirmed the formation of CaCO₃ with various polymorphs.