低水平辐射诱导的兴奋效应包括细胞和机体的适应性反应，免疫功能增强和致癌作用减弱。本文概述了以上几方面研究的最新进展，并着重分析了低水平辐射增强免疫的细胞和分子机制及其整体调节，指出了这一领域科学研究的实用前景和理论意义 Excitatory effects induced by low levels of radiation include adaptive responses of cells and the body, enhanced immune function, and impaired carcinogenesis. This article summarizes the recent advances in the above aspects and focuses on the cellular and molecular mechanisms of low-level radiation-induced immunity and their overall regulation, and points out the practical and theoretical significance of scientific research in this field