As export adjustment and optimization is one kind of strategic act , this thesis make a research on present international environment and domestic environment . comparative superiority is the basis of export . this thesis uses trade competition index and index of export superiority changing in demonstration analysis on comparative superiority of jiangsu ' s export 文章根據(jù)當前的國內外貿易環(huán)境的變化,運用貿易競爭指數(shù)和出口優(yōu)勢變差指數(shù)分析法對江蘇省出口的比較優(yōu)勢進行了實證研究,發(fā)現(xiàn)勞動密集型產品強勢依存,資本和技術密集型產品出口正逐步樹立比較優(yōu)勢,資源密集型產品出口已處于比較劣勢。