Abstract: Based on attenuation, harmonic and other interferences that lead to lower success rate of power data acquisition,this paper proposes a data acquisition and detection technology of power terminal based on carrier communication to improve the success rate of acquisition. The hardware design and software functions of the terminal are realized through the carrier technology,the hardware structure is redesigned according to the present smart meter,and the power carrier module is added for signal amplification. At the same time,the carrier technology is used for data acquisition and transmission,so that the meter,carrier meter and terminal can be exchanged and collected,and combined with the abbreviated algorithm to perform data verification on the collected data,so as to realize the collection and detection of power terminal data. The experimental analysis results show that the detection error of the smart meter in this paper is less than 1%,which improves the accuracy and has excellent effectiveness. It can effectively detect the communication capabilities of the carrier communication modules of different manufacturers.