本文运用ＳＤＳ－ＰＡＧＥ电泳技术，比较分析了３个小麦品种籽粒生育过程中叶片和籽粒各种蛋白质的动态变化，结果表明，（１）小麦籽粒生育过程中叶片和籽粒中蛋白质的种类和数量有较大变化；（２）叶片和籽粒蛋白质动态变化存在负相关性；（３）叶片中５２和４７ｋＤａ蛋白质起初最多，后期很少，籽粒中６３和５８ｋＤａ蛋白质前期很少，后期最多，变化幅度较大；（４）叶片蛋白质含量最后阶段骤然下降，籽粒蛋白质含量显著上升，这些变化对不同品种有一定差异． In this paper, SDS-PAGE electrophoresis was used to analyze the dynamic changes of various proteins in leaves and kernels of three wheat cultivars. The results showed that: (1) the types and numbers of proteins in leaves and kernels of wheat were (2) There was a negative correlation between the dynamic changes of leaf protein and grain protein; (3) The 52 and 47 kDa proteins in leaves at first and later were seldom seen, while the 63 and 58 kDa proteins in seeds had few prophase and later period, (4) The content of protein in leaves decreased sharply in the final stage and the protein content in grains increased significantly. These changes had some differences to different varieties.