Radiation-proof cigarette filter tip

The utility model relates to a radiation-proof cigarette filter tip for reducing smoking harm to a human body, which comprises a filter tip, the inner part of which is filled with filtering fiber. The surface of the filtering fiber has a metal coating which can be a silver coating or a copper coating or an iron coating or an aluminum coating or a chromium coating. The utility model can filter the harmful substances, such as nicotine, smoke tar, etc., and can shield alpha rays, which reduces the harm to the human body.