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To monitor building equipments, a method of design and realization for distributed measure and control system is proposed, and the configuration of three-level network based on field bus, Ethernet and Internet and their communication techniques are described respectively. The concentrate monitoring and control for building equipments can be realized with B/S model and ADO technique. The data integration and management technique by using Visual C++ multithreading programming and data-base Web accessing technique is also developed. A micro-computer monitoring software system has the functions such as operation analyzing, data searching, running curve and data statistics, report forms printing, etc. Because the running data stream is great and uneven, statistics database and historical database are used to store and manage data efficiently. The fact shows that the system operates conveniently and efficiently, and the design method is practicality.