Aiming at the requirement of remote monitoring of multi-channel analog signal, a remote dual channel signal acquisition and transmission device based on Ethernet is designed. The dual channel analog signal acquisition module is designed based on FPGA and high-speed AD. The pingpong operation of dual RAM modules on FPGA chip is used to realize the cache and transmission of two-way digital signals. The remote transmission of digital signals is realized based on UDP transmission protocol and Gigabit network chip RTL8211DG. The remote receiver caches different RAM blocks according to the Mac address of UDP packets received. The results show that the design can realize the reproduction of two signals, and has strong versatility, portability and expansibility.