The energy remote terminal unit is the necessary equipment of the electric energy collection system. It has been an important part of the alteration in the power automation system with the energy data collection system of automated, reliable, maintenance convenient. This thesis is based on the design for energy remote terminal unit. In this thesis, the idea of real-time embedded system is applied in traditional energy data collection system. A design and implementation of energy remote terminal unit is proposed according to the requirement of the project, based on the real-time operation system Linux. The system may complete collect record monitor in real time the data of energy meter's and so on. The hardware is based on the signal board computer of industry CPU chip PC 104, Modularization hardware drive and function design, The software adopt embedded Linux operation system, the GPS module can decide time of the collecting system, guarantee accuracy of collecting time, the data which the system collected send to master server.