There is a rapid increase in the contamination of agricultural soils with cadmium worldwide, especially in China, so it is necessary to nd solutions to reduce the toxicity of it. To investigate the effect of silicon on cadmium toxicity in Triticum aestivum L. cv. Yannong 19, an experiment was conducted with four treatments (control, silicon, cadmium, silicon × cadmium). This experiment examined the following factors in wheat: root-and-shoot cadmium concentration, TF, root-and-shoot Silicon concentration, SOD, POD, CAT, APX, GSH, ASA, MDA, total protein content, total soluble sugars, root-and-shoot dry weight, Total chlorophyll, chlorophyll a and b, the content of N, P, and K. The present study showed that cadmium treatment severely affected wheat seedling morphological and physiological factors, but silicon treatment greatly reduced these adverse effects. Furthermore, silicon alone had signi cant positive effects on wheat's biochemical and morphological structures. The results of this study also revealed that silicon treatment increased TaPIP1 and TaLsi1 gene expression, whilst cadmium treatment caused the upregulation of TaNramp5, TaLCT1, TaTM20, TaHMA2, and TaHMA3 genes. In conclusion, the present study found that, although cadmium negatively affects the various structures of Yannong 19, nevertheless, Sodium Metasilicate Nonahydrate (a source of silicon) can be a viable method of reducing cadmium absorption, transfer, and toxicity in this wheat variety.