The paper gives a brief introduction to the merge and reorganization of international petroleum and petrochemical corporations, expounds on the trends of operation and development of foreign main petroleum corporations and puts forth relevant proposals as regards the development of China's petrochemical industry.

On the basis of explanation that the management & development environment of world petroleum & petrochemical industry has changed greatly and deeply since the new century replacing the old one,the article(comprehensively) and briefly summarizes the new changes and characteristics of management & development strategy of foreign major petroleum & petrochemical companies in recent years.

The article gives a brief account of foreign petroleum and petrochemical companies' investment status in China,and makes an overall and in-depth analysis on the companies' strategies in entering China in the areas of production,technology,market and management,etc.