In this paper, on the basis of the work about the energy acquisition node design and the research of ZIGBEE protocol, the topology structure of the star and tree wireless sensor networks are respectively applied to the design of energy collection system, which is a good solution to the multi-user power collection in cell area, as well as the parameters of the long-distance power transmission problems; In the design of the host computer system, The technologies related to VC++ and ACCESS database are used in this paper. The data is transmitted through the serial port to the host computer, which can dynamically display the topology structure of network in real time. It plays a very important role in monitoring of the power system.