To study the effects of cassava/peanut intercropping(C/P) on their yield and nutrient content, three treatments: cassava monoculture(MC), peanut monoculture(MP) and cassava/peanut intercropping(C/P) were conducted. Compared to MC or MP alone, at seedling stage of cassava (flowering–pegging stage of peanut), C/P had very few influence on the growth of cassava and peanut. However, at foot formation stage of cassava (pod setting stage of peanut), the biomass of intercropped peanut in stem and leaf significantly gained significantly, while the height, stem diameter and biomass of intercropped cassava were obviously suppressed. The N,P content of intercropped cassava in root, stem, leaf decreased 16.53%–19.64%、9.20%–25.24%, respectively; while the K content of intercropped cassava in root and stem decreased 31.29% and 1.17%, respectively. At root early enlargement stage of cassava (mature stage of peanut), although the pod yield of intercropped peanut significantly decreased by 19.25%, intercropped peanut showed yield advantage and intercropped cassava showed yield disadvantage when compared the land equivalent ratio of cassava with peanut. At harvest stage of cassava, the height, stem diameter, starch yield and fresh root yield of intercropped cassava were close to MC, indicating that intercropped cassava had competition–recovery effect during the growth stage of cassava. Compared with MC, the calcium, magnesium, zinc and manganese content of intercropped cassava in foot increased 18.62%–42.86%, 7.84%–44.44%, 12.50%–39.84%, 24.00%–58.33%, respectively during the co–growth stage, and the above 4 elements significantly increased in the intercropped cassava stem at different growing stage. The results indicated that calcium, magnesium, zinc and manganese biofortification strategies can be reached in cassava foot and stem by intercropping with peanut at different growing stages.