The innovation networks of small and medium-sized enterprises cluster become more and more important and turn into the organization form and strategy action that the small and medium-sized enterprises construct their core competence.

The thesis establishes the comprehensive evaluation system and puts up how to appraise the small and medium-sized enterprises cluster s innovation capability in the light of the theory of gray system.

Compared with the coastal economically developed provinces,the small and medium-sized enterprises clusters in Hubei province fall behind in quantity,scale,competitiveness,industry chains,degree of labor division,and foreign trade for existence degrees.

SMEs clusters is one of the road to pass absoulty for its continual development,the important means to promote the competitiveness of industry and regional economic,the important bolstering of Hunan s industrialization and urbanization and agriculture industrialization.

Based on the existing problems in the development of SMEs clusters,this paper starts by analyzing the relationship between the development of SMEs clusters and circulation economy,and applies the concept of cyclic economy to the development of SMEs clusters.

Government is an active participant in SMEs clusters.

An analysis on "lemons market" of mid-small enterprises cluster;

The formation of mid-small enterprises cluster required unique area geographical terms, resource naturalendowment terms and historical cultural terms.

In recent years, mid-small enterprises cluster contributes much more to regional and even global economic growth.

As a special industrial organization mode,SME clusters display powerful life-force and economic victor in recent years.

Specialized market and SME clusters promote each other, which strengthens the competitive advantages of SME clusters.

Combining the characteristics and marketing advantages of SME clusters,five approaches for the realization of regional marketing are put forward.

The Government Effect on Generic Technology Development of SME Cluster in Zhejiang;

The existing researches show that SME cluster theory is mostly applied in the SME development,agricultural problems,regional economic development and industry competition.

As a newly technology innovator, SME cluster has special innovation advantage comparing with other innovators, so it is necessary that we should do some research on technology innovation of SME cluster.