The invention provides a heliostat field which comprises the components of a master control unit, N heliostat assemblies, N heliostat assembly control units, transmitting cables and N M-pass connectors which match the transmitting cables; wherein N is an integer which is larger than or equal with 2, and M is an integer which is larger than or equal with 3. After the master control unit is connected with a first heliostat assembly control unit through a first M-pass connector, the idle port of the first M-pass connector is connected with a second M-pass connector which is connected with a second heliostat assembly control unit; and so on, finally the idle port of an (N-1)th M-pass connector is connected with an N-th M-pass connector which is connected with the N-th heliostat assembly control unit. Each heliostat assembly control unit is connected with one heliostat assembly. Through the structure of the heliostat field, simple line arranging and simple connecting manner of the heliostat field according to the invention are realized; and furthermore construction cost and later maintenance cost can be effectively reduced.