The invention discloses a novel sound insulation mask which is composed of a mask body, a rubber fixing band, an external sound insulation device, internal cover type sound insulation material and a rubber gasket. The effect of sound insulation can be greatly realized by the integrated effect of the internal cover type sound insulation material and the external connecting sound insulation device. You can wear the sound insulation mask if you don't want to disturb others when reading and singing, and you can even put the earphone receiver in the sound insulation mask when making a call so as to achieve the effect of "silent talk". The personal privacy of the user can be greatly protected, and even the military personnel can realize "silent communication" by wearing the novel sound insulation mask and internally connecting a radio device in case of taking military actions.