Abstract: MXene materials have been demonstrated to have vast potentials in energy storage, sensors, biomedical applications, and electromagnetic interference shielding due to their excellent electrical conductivity, rich surface groups, good hydrophilicity and highly adjustable micromorphology. However, in traditional MXene films, the self-stacking effect of MXene nano-sheets leads to significant reduction in specific surface area, low loading capacity for functional materials, and the impeded ion transport. To address these bottlenecks, the construction of porous MXene materials with high specific surface area and abundant pore structures has become one of the hot spots in the recent researches of MXene material and device. In this review work, the latest advancements in porous MXene fabrication techniques are summarized firstly, with the focus on the strategies of forming porous architecture. These strategies could not only effectively relieve the problem of self-stacking, but also regulate and control the electrical conductivity, dielectric properties, and ion transport dynamics within porous MXene. Subsequently, according to different scenarios of porous MXene applications, the research progresses are systematically reviewed in the fields of lithium/sodium-ion batteries, supercapacitors, sensors, biomedicine, electromagnetic interference shielding and so on. Meanwhile, in this review work, we also try to sort out the application-specific strategies, pore structure optimization, and device design. By retrospecting the current researches on porous MXene materials and their applications, this work aims to provide theoretical and experimental foundations for advancing the industrialization of porous MXene materials.