本文给出了基于电话网络的家用电器远程控制系统的总体框图。分析了振铃检测、DTMF 解码和实时时钟DS12887 的原理。对ISD2590 的信息检索模式提出了M1 和M6 相结合的使用方法，并设计出了硬件电路。经过系统运行，验证了该系统的有效性和实用性。关键词：家用电器；远程控制；家庭自动化；电话网络；振铃检测Abstract: This paper gives the framework of household appliances remote control system based telephone network. After analyzing the thesis of ring-detecting, DTMF decoding and real-clock DS12887, this paper gives the using method of M1 and M6 integration for ISD2590 information retrieve and designs the hardware circuit. By running the system, the efficiency and practicability is verified.Key words: household appliance; remote control; home automaton; telephone network;ring-detecting.