Laser ablation ICP-MS element mapping technology serves as a powerful tool for spatial chemical analysis of material surfaces. This technique employs a laser beam to perform rapid, ordered point-by-point ablation across the sample surface, with the generated aerosols being detected in real-time by ICP-MS, thereby synchronously acquiring elemental composition information at each sampling point to ultimately construct high-resolution two-dimensional elemental distribution maps. Compared with techniques such as electron probe microanalysis (EPMA), its advantages lie in superior elemental detection sensitivity (down to ppb levels) and broader elemental coverage (from Li to U). In materials science, this technology can intuitively reveal critical information including elemental segregation and diffusion behavior in multiphase materials, uniformity of coatings/platings and interfacial bonding conditions, elemental composition of cracks and corrosion products in failed components, and distribution of impurity elements in semiconductors or battery materials—providing indispensable chemical imaging evidence for understanding material performance, optimizing processes, and diagnosing root causes of failure.