The study explores how Martin Heidegger conceives communication silence. The method used is meta analytic and allows revealing the figure of silence in Heidegger's thinking. In the writings of Martin Heidegger, silence appears as a possibility of communication. Dasein that chooses discourse can opt for silence. Silence is neither the destiny of the language nor is it a random limit for it. It is not silence that is decisive, but discourse. The logic of silence will be called by Heidegger “Sygetics” (in Greek “sigan” means “to be silent”). Silence is a place of thinking. According to Martin Heidegger, Sygetics does not translate the idea that discourse must be replaced by silence. Sigetics is logics of thinking silence