Healthy inner wall paint without VOC and preparing method

The invention discloses healthy interior wall coating with zero VOC. The healthy interior wall coating with zero VOC is processed and prepared through a plurality of working procedures such as taking deionized water, titanium dioxide, emulsion, ultra-fine calcium carbonate and ultra-fine talcum powder as the main raw materials and adding dispersing agent, flow agent, thickening agent, anti-mildew agent, film-forming agent and anti-foaming agent as the special auxiliary agent. The invention also discloses a preparation method of the zero-VOC healthy interior wall coating, because the coating adopts a clean production technology, during the process of production and construction, the coating has low-volatile organic matter content, the indexes of soluble heavy metal and the ecological toxicity are lower than the national standard, and the content of the volatile organic matter (VOC) is zero. The heavy metal compound is less than 500 mg/kg, the content of the polymer of formaldehyde and formaldehyde is less than