Foldable encroachment is the absorbers of energy playing a very crucial role in the protection of automotive components being damaged during any dispute. Any sort of disputes among the two objects leads to damage to one of the objects or in some cases both of the objects. Such damages can be scratches, fractures, or minor cracks. The designers should know about the behavior of the object or the type of material and how it will react under encroachment events. Different forms of energy absorbers with foldable encroachment are formed because of these factors. For the last few years, numerous experiments have been carried out to develop such foldable encroachment energy absorbers. This paper illustrates the studies carried out on typical shapes and actions of foldable encroachment energy absorbers as well as its under encroachment behavior high axial strain. Literature is discussed in-depth focused on experiments and study of the impact of various parameters of the geometry on crushing behavior testing the behaviors of such energy absorbers. An energy absorber might have multiple formations like square tubes, circular tube, or frustums of pyramids and cones. Studies on dynamics of crushing, modes of deformation, the capacity of energy-absorbance, the impact on the maximum, and mean crushing stress are the factors used to detect the crushing actions of the energy absorber. The present work aims to cover significant data from previous research of such parameters showing the behavior. Although the maximum of the studies conducted on the metallic energy absorbers, the main focus is on including the studies which made use of FML member, composite tube, FGT Tube, and the honeycomb plate in the form as a foldable encroachment energy absorber. Keywords? Foldable Encroachment Energy Absorber