| As an important practical form of sustainable development in the world, Industrial Ecosystem (IES) represented by Eco- Industrial Park is an artificial regional economic system to simulate structure and mechanism of natural ecological system. However, with the great improvement of IES, some stability problems caused by lots of factors in structure, exterior and technique come to expose. Research on the stability of IES is turning into a meaningful academic theme both in theoretical and practical fields. More and more people begin paying their attentions to the problem that which factors influence the stability of IES significantly and how to avoid the running venture and how to propel the construction of IES in China.In present paper, the IES in China is taken as the research object, with the integration of research in connotations defining (Chapter 1 & 2), hypotheses forming (Chapter 3), hypotheses proving (Chapter 4 & 5) and conclusions discussing (Chapter 6). The following three parts related to the study are carried out:1. The connotation of IES stability is defined and influence factor hypotheses of IES stability in China are presented. A structural questionnaire to survey influence factors is developed.The ambiguous connotation and influence factors of IES stability in past researches have been distinguished and defined in the paper in three different viewpoints of research on control engineering, ecology, management science (strategic alliance theory) and industrial ecology. 17 possible influence factors of IES stability are abstracted through reference review. 10 valuable hypotheses which accord with Chinese IES practice are selected after domestic Delphi survey and investigating some classic IES in China, and a hypothetic model for influence factors of IES stability in China is established in three dimensions of structure, exterior and technique. A survey questionnaire of influence factors of IES stability in China is developed which provides a possible referenced sample of questionnaire for other relative researchers.2. Five factors such as government support, sufficient technique are proved to be key factors influencing the stability of IES in China significantly and the hypothetic model proposed in part 1 for influence factors of IES stability in China is validated and emended.47 domestic IES samples in 14 provinces are surveyed and ccorrespongding statistic research methods are used to measure the performance and the relationship of the influence factors and the stability of the sample IES. It could analyze the influence factors in detail. Andafter an explanatory case study to a certain famous Ecological Industrial Park, the following 5 factors are proved influencing the IES stability in China significantly by the empirical researches: government support, sufficient technique, member diversity, keystone species enterprise and cooperation distance. It is also proved that the factors such as information platform construction, economic support, space distance, IES principals and member dependence are influential in some degree. The above conclusions construct and emend the three-dimensional model for influence factor of IES stability in China mentioned in part 1.3. The IES stability mechanisms about the 4 of the 5 proved influence factors are analyzed and solution schemes for the difficulties in operation are also proposed.After deep analysis for the mechanism of the 4 proved factors: government support, sufficient technique, member diversity and keystone species enterprise, researches such as Chineses IES government support model designing, concurrent engineering in IES based on knowledge management model designing, IES member diversity evaluation and keystone spices enterprise evaluation and selection, are carried out and application schemes are presented. The above study gives the dissertation prominence to practical meaning and policy guidance quality.
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