To provide a method for wearing a mask and a device which reduce a burden on ears or uncomfortable feeling of cheeks, facilitate wearing and removing a mask, and having an improved appearance when wearing the mask.

A hooking parts are attached to both ends of a single rubber string or both ends of the rubber string are molded into a hooking structure, the hooking parts are mounted on the ears, and ring shaped parts are eliminated. The hooking parts are formed at both ends of the rubber string made from a material, such as a styrenic elastomer, having an elasticity of hardness of 0-4 and appropriate adhesiveness, a fixing surface for fixing a mask body is formed at the center of the rubber string, and the mask is worn using the single rubber string.