Pediatric brain tumors rank the second in the incidence of childhood malignant tumors with an increasing trend year by year. Despite significant advances in clinical treatments in recent years, improvement in survival rates for children remains limited. Multimodal technology can be combined with various techniques such as neuroimaging, intraoperative navigation, and functional monitoring to achieve precise positioning, functional protection, and real-time monitoring through complementary advantages. With the advancement of related technologies and the accumulation of new evidence in Nneurooncology, this technology has been widely applied in adult Neurosurgery. However, the particularity of child brain development and its high heterogeneity with adults pose unique challenges for the application of this technology in the field of pediatrics. This review focuses on the application progress of multimodal technologies in the treatment of pediatric brain tumors in functional areas, and systematically elaborates on the core aspects including high-precision reconstruction of preoperative multimodal imaging, targeted application of intraoperative non-invasive and real-time anatomical correction technologies, adaptive improvement of intraoperative neuroelectrophysiological monitoring and awake anesthesia, as well as the construction of a closed-loop integration strategy for multimodal technologies, so as to provide references for optimizing surgical strategies.