With the rapidly development of economy and technology, the needs of electricity become increasing in production and living. The production of electricity is limited, while there are some energy wasted or electricity unreasonable used in life. Thus to realize the concept of sustainable development, must be guaranteed energy used efficient, reasonable and low loss to bring more benefits to human beings. A power energy detection system is designed. ATT7022CU chip acquires three-phase electric energy parameters through transformers, with STC90C58AD as the main control chip of data receiving module can receive transmited data from data acquisition module. The detection system can transmit all data information to the upper computer by wireless module, and the upper computer can handle the corresponding position through the algorithm. Through the experiment of current and voltage acquisition, the real time and precision of the detection system for power parameter acquisition can be explained according to the data collection results. The system can reduce the loss of power, improve the efficiency of energy, and have large market space of application.