本文概述了单相电能采集系统的发展与需求，主要探索一个简易的单相电能采集系统的总体结构以及各个部分的电路设计。该系统主要由电能采集模块、时钟模块、存储模块、单片机控制模块、电源模块以及LCD显示模块组成。其中由ADE7755实现对电能的采集，通过AT89S51单片机来控制对电能的存储以及LCD的显示。-In this paper, the development of the single-phase electric energy acquisition system and the demand, mainly to explore a simple single phase electric energy acquisition system of the overall structure and each part of circuit design. The system is mainly composed of power acquisition module, clock module, storage module, MCU control module, power module and LCD display module. Among them by ADE7755 to realize the collection of electric energy, through AT89S51 control of electrical energy storage and LCD display.