Driven by the development of nanotechnology,silver nanomaterials are widely used in the field of sensing due to their catalytic performance,conductivity,and optical properties.The silver nano triangular sensing array has become a research hotspot in the field of biochemical substance detection,supported by its performance in multi-component simultaneous detection and high sensitivity.Based on this,this article summarizes the synthesis methods,characteristics,and research progress of sensing arrays of silver nano triangles,and focuses on the practical applications of colorimetric sensing arrays,surface enhanced Raman scattering,and other technologies in biochemical substance detection,providing useful references for research and practice in related fields.