The objective of the present invention is to provide a method capable of purifying a virus or a virus-like particle easily. The method for purifying a virus or a virus-like particle according to the present invention is characterized in comprising the step of contacting a liquid comprising the virus or the virus-like particle with a water-insoluble inorganic compound, wherein the water-insoluble inorganic compound comprises one or more elements selected from magnesium, calcium and aluminum.