Impact-loaded concrete structures cause severe and rapid damage, resulting in significant property and human life loss. As the temperature rises, the damage caused by impact loading becomes increasingly severe. Concrete structures need structural health monitoring (SHM) to avoid these damage and loss. In this study the voltage relation technique were used to identify the damage state of concrete under impact loads at various temperatures conditions as experimentally and numerically. For this purpose, an experimental study was performed on concrete cube specimens in which different piezo configurations (surface bonded, non-bonded, and jacketed) were installed to acquire the voltage data. Before applying an impact load to the top surface of concrete specimen, it was preheated at 50 oC, 100 oC, and 150 oC to provide the temperature effect, and then a free-falling iron ball was dropped from 3 m heights on the top of the specimens. Furthermore, finite element analysis has been carried out to validate the experimental results with analytical results. The experimental results shows that the voltage relation technique are well capable in detecting the damage in concrete under the temperature and impact loading conditions. All the piezo sensors configurations are capable in finding the damage. Jacketed sensors are more efficient in health assessment of concrete in terms of voltage relations. In terms of strain values, the analytical results are in good agreement with the experimental results.