Previous research of polyisoprene nanostructured carbon black composites (PNCBC) have confirmed that, depending on the carbon black concentrations and filler dispersing methods, this composite has got higher or lower piezoresistive properties [1]. The main objective of this research is to achieve good composite homogeneity and remarkable piezoresistivty properties by using thermally exfoliated graphite (TEG) as the electrically conductive filler in polyisoprene nanostructured carbon composites (PNCC). TEG has been synthesized in Department of Physics of Kyiv National Taras Shevchenko University. Afterwards the mechano-electrical properties of these composites has been determined in cyclic loading and unloading under 0,1 and 1 MPa of maximum pressure. By analyzing these results we can conclude that usage of TEG in PNCC to some extent improves the piezoresistive properties compared to PNCBC.