There are many factors in smart meter, such as low data transmission efficiency, lack of data acquisition indicators, and equipment online rate cannot be monitored in real time kind of malpractice. This paper proposes a data acquisition front-end method for high-concurrent acquisition of million-level electricity meters. This method is based on the optical fiber communication technology TCP/IP protocol and has realized the meter reading function of the electricity meter data return, high-speed broadband Internet access function, real-time data transmission and intelligent data processing function. The experimental test results show that the novel type of smart meter data acquisition scheme can fully realize the design function, the device runs stably, and the test result of network speed is satisfactory. The success rate of concurrent acquisition can reach 99.7%. This method provides a new way for smart grid interaction, informatization and automation.