The invention discloses a cluster equipment minimum arranged wire control transmission method. Controlled equipment of control units is physically bound with driving circuits for applying control, single chip microcomputers and Ethernet controllers and is connected with the outside by two connecting wires at most; a small number of wires are arranged; the equipment is easy to disassemble and is convenient to maintain; a plurality of centralized control machines can be used for carrying out control on the CU (Control Unit) field so as to meet the requirements for expanding equipment control capacity or further improving a data transmission rate; and the cluster equipment minimum arranged wire control transmission method is used for controlling a great quantity of cluster equipment, adopts the minimum arranged wires, is high in real-time performance, uses a single TCP/IP (Transmission Control Protocol/Internet Protocol), and has an important application value in the field of industrial control, the field of equipment control, the field of data sensing sampling and particularly the field of simulation. The cluster equipment minimum arranged wire control transmission method can well solve the problems of wire arrangement, real-time performance and compatibility of communication protocols.