Organic Silicon Modified Fertilizer(OSiF)is a new type of fertilizer，which has the effect of improving fertilizer utilization rate and reducing the absorption and accumulation of heavy metals.Studying its effects on crop nutrient absorption and cadmium absorption and its mechanism are of great significance for promoting new fertilizer and cadmium reduction technology.A field experiment was conducted to study the effects of OSiFs and common compound fertilizer oncornyield，nutrient uptake and cadmium content in maize.The results showed that OSiFs significantly increased the total dry weight of plants by 59%～60%，the harvest coefficient by 40%～42%，and the corn yield by 123%～127%；And in the meantime，the accumulation ofN，P and K in plants was increased by 26%～47%，19%～ 21% and38%～ 51% respectively，and the accumulation of N，P and K in corn grain was increased by 72%～ 90%，72%～ 82% and 103%～ 128% respectively.Simultaneously，the Cd content of mature grains with OSiFs decreased by 11%～ 13%. Determination of soil pH and soil Cd forms showed that pH of soil with OSiFs increased by 0.13～0.23 units，while theexchangeable cadmiumdecreased，and the reduced and residual cadmium increased in comparison with the control fertilizer.The results showed that application of OSiFs in crop production could be a new technology to improve nutrient absorption， increase yield and reduce cadmium absorption and transport.