Investigated the temperature dependence of resistivity of ionic compounds [C₄mim] PF₆ and [C₆mim] NTf₂. In all cases the samples are cooled to 77 K there is growing resistance to a law close to parabolic. When heated to the crystallization temperature on the curves of lnR (T) anomalies in the temperature range corresponding to the supercooled liquid state. The value of resistivity in the crystalline state are different for these compounds. In the case of [C₄mim] PF₆ resistance less than the state of the glass, for [C₆mim] NTf₂ the opposite is true.