The dual-mode data acquisition system is a new type of data acquisition system independently developed by Friendcom. The system adopts dual-mode communication technology of micro-power wireless and power line narrow-band carrier to realize self-organization and self-maintenance functions of data acquisition communication network. Dual-mode heterogeneous wireless communication works at 470MHz ~ 510MHz, which belongs to the micro-power metering frequency band free of application and does not require additional licensing fees or third-party support from the network. Power line carrier communication uses the existing power line as the signal transmission medium without additional wiring. Through the combined use of the two communication modes, it is possible to avoid (two communication methods) respective communication blind spots, provide more and more reliable routing options, thereby improving the stability of network communication. Utilize the characteristics of the two communication methods to achieve speed priority and meter reading experience priority, and provide a high-speed and stable communication method for electricity consumption information collection.