Chongqing, the old industry base of China, whose main economic support is mass manufacturing that make up of traditional industries such as mechanism, enginery and metallurgy. This mass has come into being middle system organizations whose core is some big firms like Changan and Jialing, in addition, many related kit factories act as branches. These organizations have agility operation and high efficiency, but there are problems because of technology asymmetry which leads to low efficiency of the industry gathers supply chain when facing high informationization market cornpetition. By analyzing the character and deficiency of the Chongqing manufacturing industry gathers, through providing a framework of information service platform to enhance the mid-rain enterprises innovation capability and complex competition. Research on building method and operation method of enterprises informationization platform has been done successfully.