Abstract: Process technology，supply，demand，and market price in china were reviewed. The problems on supply and demand，the main factors on market price change were analyzed. The development trend of the market is predicted. Hazard and environmental protection for PX production were analyzed. In addition，PX industry was analyzed from raw materials，process technology，supply and demand，industry distribution and the difference between regional economic development goal and the wishes of local residents. At last，some proposals were put forward for the development of domestic PX industry as diversifying raw materials and investment，promoting industrial balanced development; developing new technology; overall planning，arranging industrial plants reasonably，and establishing integrated site or industrial park; forming a global industry chain; guiding the public opinion，making decision scientifically.

Key words: p-xylene(PX), process technology, market, supply and demand situation, industry analysis

摘要： 论述了目前对二甲苯（PX）的工艺技术和我国PX的供需和市场价格情况，分析了供需存在的问题和价格变化的主要因素，同时对市场的发展趋势进行了预测，分析了PX的危害性和环保相关问题。此外，分别从原料、技术、供需、产业布局和目前地区经济发展目标与民众意愿的矛盾等角度对我国PX产业进行了分析，并针对性地对PX的产业发展提出了一些具体的建议：原料多样化，投资多元化，推进产业平衡发展；进一步积极开拓新技术；统筹规划，合理布局，建立一体化基地或产业园区；走出国门，建立全球产业链；疏导民意、科学决策。

关键词: 对二甲苯, 工艺技术, 市场, 供需状况, 行业分析