Taking ‘Taiyanghong 35-13’ bell pepper and Tengger desert sanel as materials,the absorption law of nitrogen，phosphorus，potassium，calcium and magnesium nutrient by bell pepper plant were studied.The results showed that the N，P，K，Ca，Mg levels in bell pepper body changed along with the organs and growth period varition.Bell pepper in the entire growth period，nitrogen and phosphorus content in each organ in order as：leaf>fruit>stem>root；potassium content in order as：leaf >stem>fruit> root；calcium content in order as：leaf>root>stem>fruit；magnesium content was as follows：leaf>stem>root>fruit.Nutrient content in root，stem and leaf blade was K>Ca>Mg>N>P；Nutrient content in fruits was K>N>Ca>P>Mg.