Under the framework of the theory that the division of public and private law,management authority enjoyed by compulsory industry associations haven\'t been discriminated from common social organizations\'authority by existing legislation,which is generally located in the private law authority.

Those years the small and medium scaled enterprises had acted a more important role, but if they want to become bigger and stronger to found the join forces, they need an effective mechanism of the guild.

The ten functions that industrial associations should possess have been discribed in detail.

Nongovernmental organization, especial industrial association, can play important roles in the economic integration in Yangtze Delta.

As the industrial association s conduct has the possibility of restricting competition,the antimonopoly law in most countries is inclined to regulate such conducts by the way of "additional standard" or "interpretation of the term",and take the principle of "essence is more important than outward form".