This nano calcium carbonate may widely apply in the PVC electric wire, the cable armor colloidal particle, makes the auxiliaries to use; Uses in the PVC thin film, the rolling membrane; Uses in the PVC building materials, like the senior ultra thin different molding, the plastic windows and doors, the window, the electricity trunking, may increase the product surface evenness and the smooth finish; Uses in PVC being soft, the hard tubing; Uses in a toy PVC plastic grain of manufacture; Uses in making the shoe industry the colloidal particle manufacture, like the PVC shoe sole and for decorative or ornamental purpos pastes the piece.