工程机械全自动注脂系统通过对各润滑点的工况监测与分析，可实现润滑点的自动注脂与故障报警。本文叙述了该系统的组成与工作原理，并对其软件、硬件设计作了介绍。 Automatic injection system of construction machinery Through the monitoring and analysis of the working conditions of the lubrication points, automatic grease lubrication and fault alarm can be realized. This article describes the composition of the system and working principle, and its software and hardware design are introduced.