In order to investigate the electrical properties of graphene cement based composites， four-probe method was used to explore the influence of moisture， temperature and external cyclic loading on the electrical resistivity of cement based composites. Meanwhile， the effect of graphene content on moisture sensitive， thermal sensitive and pressure sensitive properties of composites was also studied . The results show that the electrical resistivity of graphene cement based composites increases with the increase of relative water content， and the reduction of resistivity sensitivity to water content was observed in high graphene content composites. The electrical resistivity of composites logarithmic decreases with the increase of absolute temperature， where 0.8% is the critical graphene content. Under external cyclic loading， the electrical resistivity of composites decreases with the increase of external load value， whereas it increases with the decrease of external load value. With the graphene content increase from 0% to 0.8%， the dispersion of resistance change rate curves reduced remarkably and the resistance change rate of composites increase.