本文介绍一种由单片微处理器构成的复合环境（温度、压力、湿度）测控系统。该系统具备采集、存储、实时处理、控制、报警等功能，并完全硬件化，非常适合航空航天空中和地面复合环境综合控制功能的需要。所介绍的设计思想和方法及硬件系统的实现具有很强的实用性。 This article describes a single microprocessor consisting of a composite environment (temperature, pressure, humidity) measurement and control system. The system has the functions of acquisition, storage, real-time processing, control and alarming, and is completely hardware-optimized. It is very suitable for the comprehensive control functions of aerospace and ground compound environment. The introduction of the design ideas and methods and hardware implementation of the system has strong practicality.