When several combined cooling, heating and power (CCHP) microgrids are connected to an active distributionnetwork, the microgrid and network serve as different stakeholders, and the economic optimal dispatch of the systembecomes more complex. To protect privacy, an economic optimal dispatch model of an active distribution network withCCHP microgrids is proposed. Chance-constrained programming is used to deal with the randomness of new energy andcooling, heating and power load in the CCHP microgrids. The distributed modeling method is adopted to minimize theoperating cost of each region. Analytical target cascading (ATC) is used to determine the optimal economic dispatchresults in their respective regions in parallel. At the same time, the introduction of an integrated demand response (IDR) inthe user side of the CCHP microgrid is conducive to reducing energy supply costs. Verification on an improvedIEEE33-bus system example shows that the introduction of IDR can effectively reduce the operating cost of the system.The optimal economic dispatch results of the active distribution network and CCHP microgrids can be obtained usingATC and protect the privacy of each region.