Three-periodic minimal surface (TPMS) metal porous structure is a new lightweight structure with wide applications in multifunctional structures. In order to study the deformation behavior and energy absorption of different structures, three TPMS samples with Diamond, Gyroid, and Primitive structures were prepared using the selective laser melting technique. Comprehensive analyses showed that different types of TPMS structures have different deformation behaviors and mechanical responses during compression. The results of this article can be used to design impact-resistant parts in vehicles or implants.